Info
- Utilizzare la checkbox di selezione a fianco di ciascun documento per attivare le funzionalità di stampa, invio email, download nei formati disponibili del (i) record.
Advances in terahertz technology and its applications / / Sudipta Das [and three others] editor
| Advances in terahertz technology and its applications / / Sudipta Das [and three others] editor |
| Pubbl/distr/stampa | Singapore : , : Springer, , [2021] |
| Descrizione fisica | 1 online resource (375 pages) |
| Disciplina | 621.38133 |
| Soggetto topico | Terahertz technology |
| ISBN | 981-16-5731-9 |
| Formato | Materiale a stampa  |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Intro -- Preface -- Contents -- About the Editors -- Recent Trends in Terahertz Antenna Development Implementing Planar Geometries -- 1 Introduction -- 2 Designing of THz Antenna -- 2.1 Microstrip Patch Antenna Array -- 2.2 Sectoral H-plane Horn Antenna -- 3 Circuit Modeling of THz Antenna -- 4 Fabrication of Prototypes -- 5 Conclusion -- References -- Element Failure Correction Techniques for Phased Array Antennas in Future Terahertz Communication Systems -- 1 Introduction -- 1.1 Antenna Array Failure Correction Software Techniques -- 1.2 Antenna Array Failure Correction Hardware Solutions -- 2 Proposed IFT Antenna Array Failure Correction Technique -- 3 Single Antenna Element Design at 3.5 THz -- 3.1 3.5 THz Linear Antenna Array with Element Failure Correction -- 4 Simulation Results -- 5 Summary -- Appendix A -- References -- The Magneto Electron Statistics in Heavily Doped Doping Super-Lattices at Terahertz Frequency -- 1 Introduction -- 2 Theoretical Background -- 3 Results and Discussion -- 4 Conclusion -- References -- Circularly Polarized Dual-Band Terahertz Antenna Embedded on Badge for Military and Security Applications -- 1 Introduction -- 2 Circularly Polarized Antenna Geometry and Simulation Results -- 2.1 Return Loss of the Proposed Design -- 2.2 Design Process and Equations Used -- 2.3 VSWR of the CP Antenna -- 2.4 Farfield of the Proposed CP Antenna -- 2.5 Circularly Polarized Behavior -- 2.6 Bending Analysis -- 2.7 Surface Current Distribution -- 2.8 Parametric Study -- 3 Antenna Simulation on Badge -- 3.1 Return Loss (dB) -- 3.2 3D Radiation Pattern -- 3.3 Total Radiation Efficiency (%) -- 4 Comparison with Related Works -- 5 Conclusion -- References -- Tera-Bit Per Second Quantum Dot Semiconductor Optical Amplifier-Based All Optical NOT and NAND Gates -- 1 Introduction.
2 Working Principle of the Inverter and Mathematical Modeling -- 3 Results and Discussions -- 4 Application of the Inverter in Designing NAND Gate -- 5 Implementation of NAND Gate Without Using Inverter -- 6 Conclusions -- References -- Performance Analysis of Oversampled OFDM for a Terahertz Wireless Communication System -- 1 Introduction -- 2 Terahertz Wireless Communication -- 2.1 Terahertz Frequency Domain -- 2.2 THz Band Characteristics -- 2.3 Applications THz Band -- 2.4 Technologies of THz Wireless Communication System -- 2.5 THz Wireless Communication -- 2.6 Challenges of THz Wireless Communication Systems -- 3 Modulation for THz Wireless Communication System -- 3.1 Justification for the Choice of Modulation Technique -- 3.2 Oversampled OFDM Modulation in THz Band -- 4 Simulation Results and Discussions -- 4.1 Power Spectral Density -- 4.2 Cumulative Distribution Function -- 5 Conclusion -- References -- Terahertz Antenna: Fundamentals, Types, Fabrication, and Future Scope -- 1 Introduction -- 2 Development of Terahertz Antennas -- 3 Basic Terahertz Antennas -- 3.1 Metallic Antennas (Horn Antenna) -- 3.2 Traveling-Wave Corner Cube Antenna -- 3.3 Dielectric Antenna -- 3.4 Novel Antenna -- 3.5 Terahertz Photoconductive Antennas -- 3.6 Reflector Antenna -- 3.7 Terahertz Lens Antennas -- 3.8 Terahertz Microstrip Antennas -- 3.9 THz On-Chip Antennas -- 4 Terahertz Sources and Detectors -- 5 Proposed Terahertz Lecky Wave Antenna -- 5.1 Introduction -- 5.2 Terahertz Antenna Design -- 5.3 Discussion on Result -- 6 Terahertz Antenna Process Technology -- 7 Future Research on Terahertz Antenna -- 7.1 The High Value of Gain -- 7.2 Size Reduction -- 7.3 The High Degree of Incorporation -- 8 Conclusion -- References -- 1D Periodic Nonlinear Model and Using It to Design All-Optical Parity Generator Cum Checker Circuit -- 1 Introduction. 2 1D Periodic Nonlinear Model -- 3 All-Optical XOR Gate -- 4 Parity Bit Generator Cum Checker Circuit -- 5 Discussion -- 6 Conclusion -- References -- Section I: Wide Bandgap (WBG) Semiconductors as Terahertz Radiation Generator -- 1 Introduction -- 2 Operation Principle of IMPATT and Its Development as a Terahertz Radiation Generator -- 3 Wide Bandgap (WBG) Semiconductors as Reliable THz Source -- 4 THz Operation Based on Avalanche Response Time (ART) Analysis -- 4.1 ART Method to Find the Suitability of Silicon Carbide and Gallium Nitride -- 5 Physical Parameters of 4H-Silicon Carbide and Wurtzite-Gallium Nitride -- 5.1 Ionization Rates -- 5.2 Drift Velocity of Charge Carriers -- 5.3 Various Important Parameters -- 6 Design and Methodology -- 6.1 Device Model -- 6.2 DC Analysis -- 6.3 Analysis for Small Amplitude RF Signal -- 6.4 Large Signal Analysis -- 7 Millimeter Wave and THz Simulation Results -- 8 Conclusion -- References -- Section II: Prospect of Heterojunction (HT) IMPATT Devices as a Source of Terahertz Radiation -- 1 Introduction -- 2 Potentiality of 3C-SiC Si and AlmGa1−mN GaN Based HT IMPATTs as Promising Sources of THz Radiation -- 3 Device Design -- 4 Simulated Outputs -- 4.1 Results for HT 3C-SiC/Si and Its HM Counterparts -- 4.2 Results for HT Al0.4Ga0.6 N GaN and Its HM Counterparts -- 5 Conclusion -- References -- Advanced Materials-Based Nano-absorbers for Thermo-Photovoltaic Cells -- 1 Introduction -- 1.1 Generations of PV Cells -- 2 Basics of Thermo-Photovoltaic Cell -- 2.1 Important Parameters, Issues and Constituent Materials -- 3 Advanced Material-Based TPV Cell Absorber -- 4 Conclusion -- References -- Broadband SIW Traveling Wave Antenna Array for Terahertz Applications -- 1 Introduction -- 2 Single SIW Antenna Design -- 3 Single SIW Antenna Design -- 4 The Proposed Two-Way Linear SIW Antenna Array -- 5 Conclusion. References -- Polarization of THz Signals Using Graphene-Based Metamaterial Structure -- 1 Introduction -- 2 Graphene Conductivity Model -- 3 Graphene-Based Polarizer -- 4 Graphene-Based Polarizer Using Optical Fiber -- 5 Graphene Array-Based Polarizer -- 6 Graphene Gold Patch-Based Three-Layered THz Polarizer -- 6.1 Introduction and Design Modeling -- 6.2 Results and Discussion -- 7 Graphene Metamaterial-Based Polarizer -- 8 Conclusion -- References -- Terahertz Frequency, Heisenberg's Uncertainty Principle, Einstein Relation, Dimensional Quantization, and Opto-Electronic Materials -- 1 Introduction -- 2 Theoretical Background -- 3 Suggestion for Experimental Determination of ER -- 4 Result and Discussion -- 5 Conclusion -- References -- Design and Characterization of Novel Reconfigurable Graphene Terahertz Antenna Using Metamaterials -- 1 Introduction -- 1.1 Traits and Properties of THz Band -- 1.2 Evolution of THz Technology -- 1.3 Applications of THz Band -- 2 Antenna Technologies for Terahertz Communications -- 2.1 Consequences for Antenna Design -- 2.2 Different Types of THz Antenna -- 3 Material Selection at THz Band -- 3.1 Graphene for THz Devices -- 3.2 Graphene Modeling -- 4 Proposed Antenna Design -- 4.1 Design of Circular Patch Antenna -- 4.2 Metasurface Loaded Circular Patch Antenna -- 5 Conclusion -- References -- Monopole Patch Antenna to Generate and Detect THz Pulses -- 1 Introduction -- 2 MIMO Principle -- 3 MIMO Skill Categories -- 4 MIMO Channel and Signal Patterns -- 4.1 Large-Scale Phenomena -- 4.2 Small-Scale Phenomena -- 4.3 Noise -- 4.4 Channel Characterization -- 4.5 Propagation Channel Modeling -- 5 Typical Coil Parameters -- 5.1 Input Impedance -- 5.2 Coefficient of Reflection and ROS -- 5.3 Radiation Pattern -- 5.4 Antenna Directivity, Gain and Performance -- 5.5 Bandwidth and Quality Factor. 6 Design and Optimization of a MIMO Antenna -- 7 Conclusion -- References -- Artificial Neuron Based on Tera Hertz Optical Asymmetric Demultiplexer Using Quantum Dot Semiconductor Optical Amplifier -- 1 Introduction -- 2 Artificial Neural Networks (ANN) -- 3 Optical Neural Network -- 4 Quantum Dot Semiconductor Optical Amplifier (QDSOA) -- 5 Tera Hertz Optical Asymmetric Demultiplexer -- 6 Optical Neuron Using TOAD -- 7 Conclusions -- References -- Terahertz E-Healthcare System and Intelligent Spectrum Sensing Based on Deep Learning -- 1 Introduction -- 1.1 Contributions of the Book Chapter -- 2 Role of THz Frequency in Forthcoming Wireless Generations and E-Health Systems -- 2.1 THz Technology for Medical Applications -- 3 Terahertz E-Health System-A Novel Approach to Smart Healthcare -- 3.1 Proposed Perceptive Hierarchal Networking Architecture and Intelligent Spectrum Sensing for Medical Data Transmission -- 4 Intelligent Spectrum Sensing Based on Deep Learning Classifiers for THz E-Healthcare System -- 4.1 Recurrent Neural Network-Based Intelligent Spectrum Sensing -- 4.2 Long Short Term Memory Based Spectrum Sensing Model -- 4.3 Convolutional Neural Network-Based Spectrum Sensing Model -- 4.4 CNN-LSTM Classifier Model-Based Spectrum Sensing -- 4.5 Advantages and Disadvantages of RNN, CNN, LSTM, and CNN-LSTM Models -- 5 Conclusion -- References -- Overview of THz Antenna Design Methodologies -- 1 Introduction -- 2 Features of THz Spectrum -- 3 Applications of THz Antenna -- 3.1 Medical Application -- 3.2 Wireless Communication -- 3.3 Security -- 3.4 Space Application -- 4 Salient Features of THz Antenna -- 4.1 THz Antenna Materials -- 4.2 THz Antenna Structures -- 5 Challenges and Research Scope -- 5.1 Antenna Design Parameters -- 5.2 Antenna Fabrication -- 5.3 THz Measurement -- 5.4 Future Research Scope -- 6 Conclusion -- References. THz Meta-Atoms Versus Lattice to Non-invasively Sense MDAMB 231 Cells in Near Field. |
| Record Nr. | UNINA-9910508453803321 |
| Singapore : , : Springer, , [2021] | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
Advances in terahertz technology and its applications / / Sudipta Das [and three others] editor
| Advances in terahertz technology and its applications / / Sudipta Das [and three others] editor |
| Pubbl/distr/stampa | Singapore : , : Springer, , [2021] |
| Descrizione fisica | 1 online resource (375 pages) |
| Disciplina | 621.38133 |
| Soggetto topico | Terahertz technology |
| ISBN | 981-16-5731-9 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Intro -- Preface -- Contents -- About the Editors -- Recent Trends in Terahertz Antenna Development Implementing Planar Geometries -- 1 Introduction -- 2 Designing of THz Antenna -- 2.1 Microstrip Patch Antenna Array -- 2.2 Sectoral H-plane Horn Antenna -- 3 Circuit Modeling of THz Antenna -- 4 Fabrication of Prototypes -- 5 Conclusion -- References -- Element Failure Correction Techniques for Phased Array Antennas in Future Terahertz Communication Systems -- 1 Introduction -- 1.1 Antenna Array Failure Correction Software Techniques -- 1.2 Antenna Array Failure Correction Hardware Solutions -- 2 Proposed IFT Antenna Array Failure Correction Technique -- 3 Single Antenna Element Design at 3.5 THz -- 3.1 3.5 THz Linear Antenna Array with Element Failure Correction -- 4 Simulation Results -- 5 Summary -- Appendix A -- References -- The Magneto Electron Statistics in Heavily Doped Doping Super-Lattices at Terahertz Frequency -- 1 Introduction -- 2 Theoretical Background -- 3 Results and Discussion -- 4 Conclusion -- References -- Circularly Polarized Dual-Band Terahertz Antenna Embedded on Badge for Military and Security Applications -- 1 Introduction -- 2 Circularly Polarized Antenna Geometry and Simulation Results -- 2.1 Return Loss of the Proposed Design -- 2.2 Design Process and Equations Used -- 2.3 VSWR of the CP Antenna -- 2.4 Farfield of the Proposed CP Antenna -- 2.5 Circularly Polarized Behavior -- 2.6 Bending Analysis -- 2.7 Surface Current Distribution -- 2.8 Parametric Study -- 3 Antenna Simulation on Badge -- 3.1 Return Loss (dB) -- 3.2 3D Radiation Pattern -- 3.3 Total Radiation Efficiency (%) -- 4 Comparison with Related Works -- 5 Conclusion -- References -- Tera-Bit Per Second Quantum Dot Semiconductor Optical Amplifier-Based All Optical NOT and NAND Gates -- 1 Introduction.
2 Working Principle of the Inverter and Mathematical Modeling -- 3 Results and Discussions -- 4 Application of the Inverter in Designing NAND Gate -- 5 Implementation of NAND Gate Without Using Inverter -- 6 Conclusions -- References -- Performance Analysis of Oversampled OFDM for a Terahertz Wireless Communication System -- 1 Introduction -- 2 Terahertz Wireless Communication -- 2.1 Terahertz Frequency Domain -- 2.2 THz Band Characteristics -- 2.3 Applications THz Band -- 2.4 Technologies of THz Wireless Communication System -- 2.5 THz Wireless Communication -- 2.6 Challenges of THz Wireless Communication Systems -- 3 Modulation for THz Wireless Communication System -- 3.1 Justification for the Choice of Modulation Technique -- 3.2 Oversampled OFDM Modulation in THz Band -- 4 Simulation Results and Discussions -- 4.1 Power Spectral Density -- 4.2 Cumulative Distribution Function -- 5 Conclusion -- References -- Terahertz Antenna: Fundamentals, Types, Fabrication, and Future Scope -- 1 Introduction -- 2 Development of Terahertz Antennas -- 3 Basic Terahertz Antennas -- 3.1 Metallic Antennas (Horn Antenna) -- 3.2 Traveling-Wave Corner Cube Antenna -- 3.3 Dielectric Antenna -- 3.4 Novel Antenna -- 3.5 Terahertz Photoconductive Antennas -- 3.6 Reflector Antenna -- 3.7 Terahertz Lens Antennas -- 3.8 Terahertz Microstrip Antennas -- 3.9 THz On-Chip Antennas -- 4 Terahertz Sources and Detectors -- 5 Proposed Terahertz Lecky Wave Antenna -- 5.1 Introduction -- 5.2 Terahertz Antenna Design -- 5.3 Discussion on Result -- 6 Terahertz Antenna Process Technology -- 7 Future Research on Terahertz Antenna -- 7.1 The High Value of Gain -- 7.2 Size Reduction -- 7.3 The High Degree of Incorporation -- 8 Conclusion -- References -- 1D Periodic Nonlinear Model and Using It to Design All-Optical Parity Generator Cum Checker Circuit -- 1 Introduction. 2 1D Periodic Nonlinear Model -- 3 All-Optical XOR Gate -- 4 Parity Bit Generator Cum Checker Circuit -- 5 Discussion -- 6 Conclusion -- References -- Section I: Wide Bandgap (WBG) Semiconductors as Terahertz Radiation Generator -- 1 Introduction -- 2 Operation Principle of IMPATT and Its Development as a Terahertz Radiation Generator -- 3 Wide Bandgap (WBG) Semiconductors as Reliable THz Source -- 4 THz Operation Based on Avalanche Response Time (ART) Analysis -- 4.1 ART Method to Find the Suitability of Silicon Carbide and Gallium Nitride -- 5 Physical Parameters of 4H-Silicon Carbide and Wurtzite-Gallium Nitride -- 5.1 Ionization Rates -- 5.2 Drift Velocity of Charge Carriers -- 5.3 Various Important Parameters -- 6 Design and Methodology -- 6.1 Device Model -- 6.2 DC Analysis -- 6.3 Analysis for Small Amplitude RF Signal -- 6.4 Large Signal Analysis -- 7 Millimeter Wave and THz Simulation Results -- 8 Conclusion -- References -- Section II: Prospect of Heterojunction (HT) IMPATT Devices as a Source of Terahertz Radiation -- 1 Introduction -- 2 Potentiality of 3C-SiC Si and AlmGa1−mN GaN Based HT IMPATTs as Promising Sources of THz Radiation -- 3 Device Design -- 4 Simulated Outputs -- 4.1 Results for HT 3C-SiC/Si and Its HM Counterparts -- 4.2 Results for HT Al0.4Ga0.6 N GaN and Its HM Counterparts -- 5 Conclusion -- References -- Advanced Materials-Based Nano-absorbers for Thermo-Photovoltaic Cells -- 1 Introduction -- 1.1 Generations of PV Cells -- 2 Basics of Thermo-Photovoltaic Cell -- 2.1 Important Parameters, Issues and Constituent Materials -- 3 Advanced Material-Based TPV Cell Absorber -- 4 Conclusion -- References -- Broadband SIW Traveling Wave Antenna Array for Terahertz Applications -- 1 Introduction -- 2 Single SIW Antenna Design -- 3 Single SIW Antenna Design -- 4 The Proposed Two-Way Linear SIW Antenna Array -- 5 Conclusion. References -- Polarization of THz Signals Using Graphene-Based Metamaterial Structure -- 1 Introduction -- 2 Graphene Conductivity Model -- 3 Graphene-Based Polarizer -- 4 Graphene-Based Polarizer Using Optical Fiber -- 5 Graphene Array-Based Polarizer -- 6 Graphene Gold Patch-Based Three-Layered THz Polarizer -- 6.1 Introduction and Design Modeling -- 6.2 Results and Discussion -- 7 Graphene Metamaterial-Based Polarizer -- 8 Conclusion -- References -- Terahertz Frequency, Heisenberg's Uncertainty Principle, Einstein Relation, Dimensional Quantization, and Opto-Electronic Materials -- 1 Introduction -- 2 Theoretical Background -- 3 Suggestion for Experimental Determination of ER -- 4 Result and Discussion -- 5 Conclusion -- References -- Design and Characterization of Novel Reconfigurable Graphene Terahertz Antenna Using Metamaterials -- 1 Introduction -- 1.1 Traits and Properties of THz Band -- 1.2 Evolution of THz Technology -- 1.3 Applications of THz Band -- 2 Antenna Technologies for Terahertz Communications -- 2.1 Consequences for Antenna Design -- 2.2 Different Types of THz Antenna -- 3 Material Selection at THz Band -- 3.1 Graphene for THz Devices -- 3.2 Graphene Modeling -- 4 Proposed Antenna Design -- 4.1 Design of Circular Patch Antenna -- 4.2 Metasurface Loaded Circular Patch Antenna -- 5 Conclusion -- References -- Monopole Patch Antenna to Generate and Detect THz Pulses -- 1 Introduction -- 2 MIMO Principle -- 3 MIMO Skill Categories -- 4 MIMO Channel and Signal Patterns -- 4.1 Large-Scale Phenomena -- 4.2 Small-Scale Phenomena -- 4.3 Noise -- 4.4 Channel Characterization -- 4.5 Propagation Channel Modeling -- 5 Typical Coil Parameters -- 5.1 Input Impedance -- 5.2 Coefficient of Reflection and ROS -- 5.3 Radiation Pattern -- 5.4 Antenna Directivity, Gain and Performance -- 5.5 Bandwidth and Quality Factor. 6 Design and Optimization of a MIMO Antenna -- 7 Conclusion -- References -- Artificial Neuron Based on Tera Hertz Optical Asymmetric Demultiplexer Using Quantum Dot Semiconductor Optical Amplifier -- 1 Introduction -- 2 Artificial Neural Networks (ANN) -- 3 Optical Neural Network -- 4 Quantum Dot Semiconductor Optical Amplifier (QDSOA) -- 5 Tera Hertz Optical Asymmetric Demultiplexer -- 6 Optical Neuron Using TOAD -- 7 Conclusions -- References -- Terahertz E-Healthcare System and Intelligent Spectrum Sensing Based on Deep Learning -- 1 Introduction -- 1.1 Contributions of the Book Chapter -- 2 Role of THz Frequency in Forthcoming Wireless Generations and E-Health Systems -- 2.1 THz Technology for Medical Applications -- 3 Terahertz E-Health System-A Novel Approach to Smart Healthcare -- 3.1 Proposed Perceptive Hierarchal Networking Architecture and Intelligent Spectrum Sensing for Medical Data Transmission -- 4 Intelligent Spectrum Sensing Based on Deep Learning Classifiers for THz E-Healthcare System -- 4.1 Recurrent Neural Network-Based Intelligent Spectrum Sensing -- 4.2 Long Short Term Memory Based Spectrum Sensing Model -- 4.3 Convolutional Neural Network-Based Spectrum Sensing Model -- 4.4 CNN-LSTM Classifier Model-Based Spectrum Sensing -- 4.5 Advantages and Disadvantages of RNN, CNN, LSTM, and CNN-LSTM Models -- 5 Conclusion -- References -- Overview of THz Antenna Design Methodologies -- 1 Introduction -- 2 Features of THz Spectrum -- 3 Applications of THz Antenna -- 3.1 Medical Application -- 3.2 Wireless Communication -- 3.3 Security -- 3.4 Space Application -- 4 Salient Features of THz Antenna -- 4.1 THz Antenna Materials -- 4.2 THz Antenna Structures -- 5 Challenges and Research Scope -- 5.1 Antenna Design Parameters -- 5.2 Antenna Fabrication -- 5.3 THz Measurement -- 5.4 Future Research Scope -- 6 Conclusion -- References. THz Meta-Atoms Versus Lattice to Non-invasively Sense MDAMB 231 Cells in Near Field. |
| Record Nr. | UNISA-996466852003316 |
| Singapore : , : Springer, , [2021] | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. di Salerno | ||
| ||
Next Generation Wireless Communication : Advances in Optical, Mm-Wave, and THz Technologies
| Next Generation Wireless Communication : Advances in Optical, Mm-Wave, and THz Technologies |
| Autore | El Ghzaoui Mohammed |
| Edizione | [1st ed.] |
| Pubbl/distr/stampa | Cham : , : Springer, , 2024 |
| Descrizione fisica | 1 online resource (667 pages) |
| Altri autori (Persone) |
DasSudipta
SamudralaVarakumari MedikonduNageswara Rao |
| Collana | Signals and Communication Technology Series |
| ISBN | 9783031561443 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Intro -- Preface -- Contents -- Part I Millimeter Wave (mm-Wave) Technology and Its Applications -- 1 Compact MIMO Antenna Design with Enhanced Isolation for mm-Wave Applications -- 1.1 Introduction -- 1.2 MIMO Antenna Design -- 1.3 Results and Discussions -- 1.4 Conclusion -- References -- 2 Security Threats and Privacy Challenges in Millimeter-Wave Communications -- 2.1 Introduction -- 2.1.1 Evolution of mmWave Communications -- 2.1.2 Scope and Significance of Security Threats -- 2.1.3 Privacy Challenges in mmWave Networks -- 2.2 Security Threats in mmWave Communications -- 2.2.1 Eavesdropping and Interception -- 2.2.2 Man-in-the-Middle Attacks -- 2.2.3 Denial-of-Service (DoS) Attacks -- 2.2.4 Physical Layer Attacks -- 2.2.5 Authentication and Authorization Vulnerabilities -- 2.3 Privacy Concerns in mmWave Networks -- 2.3.1 Location Tracking and Profiling -- 2.3.2 Data Breaches and Information Leakage -- 2.3.3 Identity Theft and Impersonation -- 2.4 Vulnerabilities and Exploitable Weaknesses -- 2.4.1 Beamforming and Signal Interception -- 2.4.2 Spectrum Sharing and Frequency Hijacking -- 2.4.3 Inadequate Authentication Mechanisms -- 2.4.4 Lack of Standardized Security Protocols -- 2.5 Mitigation Strategies for Security Threats -- 2.5.1 Encryption and Cryptographic Techniques -- 2.5.2 Secure Key Exchange Protocols -- 2.5.3 Intrusion Detection and Prevention Systems -- 2.5.4 Enhanced Authentication Mechanisms -- 2.5.5 Spectrum Management and Dynamic Frequency Allocation -- 2.6 Future Perspectives and Emerging Trends -- 2.6.1 Advancements in mmWave Security Solutions -- 2.6.2 Integration of AI and Machine Learning for Threat Detection -- 2.6.3 Evolving Privacy Standards and Policies -- 2.6.4 Anticipated Challenges in Next-Generation mmWave Networks -- 2.7 Conclusion -- References.
3 The Performance Analysis on Channel Estimation in Millimeter-Wave Communication and Their Challenges -- 3.1 Introduction -- 3.2 System Model -- 3.2.1 Problem Formulation -- 3.3 Iterative Methods -- 3.3.1 Approximate Message Passing (AMP) Algorithm -- 3.3.2 Learned Approximate Message Passing (AMP) Algorithm -- 3.3.3 Learning the LAMP Parameters -- 3.3.4 Vector Approximate Message Passing (VAMP) Algorithm -- 3.3.5 EM-VAMP Algorithm -- 3.4 Proposed VAMP-SBL-EM Algorithm -- 3.5 Simulation -- 3.6 Conclusion -- References -- 4 Innovative mm-Wave Compact Dual-Port MIMO Antenna with Inherent Wideband Isolation at 28 GHz for 5G Wireless Networks -- 4.1 Introduction -- 4.2 Structure and Performance Analysis of the Submitted Individual Antenna -- 4.2.1 Submitted Antenna Layout -- 4.2.2 Antenna Evolutionary Phases -- 4.2.3 Exploration of Trapezoidal Slot Parameters Through Comprehensive Analysis -- 4.2.4 Findings and Analysis -- 4.3 Antenna Configuration in MIMO Composition -- 4.3.1 Layout and Scattering Parameters -- 4.3.2 Characteristics of Diversity -- 4.3.3 Evaluation Through Relevant Earlier Research -- 4.4 Conclusion -- References -- 5 Design of Ka-Band Power Amplifier and Low-Noise Amplifier for 5G Communication Systems -- 5.1 Introduction -- 5.1.1 Power Amplifier -- 5.1.2 Low-Noise Amplifier -- 5.1.3 GaN HEMT -- 5.1.4 Objective -- 5.2 Literature Survey -- 5.2.1 5G RF Front End -- 5.2.2 Power Amplifier -- 5.2.3 Low-Noise Amplifier -- 5.2.4 Biasing Network -- 5.3 Design of Power Amplifier -- 5.3.1 Design Consideration -- 5.3.2 Proposed Power Amplifier Using UMS GH15-10 -- 5.4 Low-Noise Amplifier -- 5.4.1 Design Consideration -- 5.4.2 Proposed Low-Noise Amplifier Design Using UMS GH15-10 -- 5.5 Summary -- References -- 6 Advanced MIMO Antenna Design with Defected Ground Structure for 5G NR (N75 and N77) Applications -- 6.1 Introduction. 6.2 Geometry of the MIMO System -- 6.3 MIMO Analysis -- 6.4 Conclusion -- References -- 7 Beamforming Array Failure Correction for mm-Wave Synthetic Aperture Radar Applications -- 7.1 Introduction -- 7.1.1 Significance of Cosecant 4th Power Pattern -- 7.1.2 Element Failure -- 7.2 Literature Review -- 7.2.1 Software-Based Antenna Array Element Failure Correction Techniques -- 7.3 Microstrip Patch Series-Fed Antenna -- 7.4 Proposed Genetic Algorithm for Element Failure Correction -- 7.5 Results and Discussion -- 7.6 Summary -- Appendix -- References -- 8 A Novel, Compact, Broadband Band-Stop Filter for Rejecting 5G Millimeter-Wave Communications -- 8.1 Introduction -- 8.2 Fundamentals of Filters -- 8.2.1 Filter Categories -- 8.2.2 Filter Classes -- 8.2.3 Importance of Filters in Communication Systems -- 8.2.4 Filtenna -- 8.3 Fundamentals of Filters -- 8.3.1 Types of Band-Stop Filters -- 8.3.2 Characteristics of Band-Stop Filters -- 8.3.3 Applications and Uses -- 8.4 Design and Analysis of a Band-Stop Filter -- 8.4.1 Parametric Study -- 8.4.2 Band-Stop Filter Equivalent Circuit -- 8.5 Conclusion -- References -- 9 A Compact Two-Port Semi-flexible Dual-Band Circularly Polarized MIMO Antenna Structure for Millimeter-Wave 26/31 GHz 5G Applications -- 9.1 Introduction -- 9.2 MIMO Antenna Design and Discussion -- 9.3 Simulated Results and Discussion -- 9.3.1 Impedance Characteristics -- 9.3.2 Bending Analysis -- 9.3.3 Radiation Characteristics -- 9.3.4 Diversity Performance -- 9.4 Conclusion -- References -- 10 Extension of Indoor MmW Link Radio Coverage in Non-line-of-Sight Conditions -- 10.1 Introduction -- 10.2 Propagation Using Passive Reflectors at 60 GHz -- 10.2.1 Use of a Passive Reflector in an L-Shaped Corridor -- 10.2.2 Use of a Passive Reflector Array in a T-Shaped Corridor -- 10.3 Impact of Blocking by the Human Body at 60 GHz. 10.3.1 Measurement Environment -- 10.3.2 Measurement Scenario -- 10.3.3 Measurement Results -- 10.4 Conclusions -- References -- 11 Design and Analysis of Conformal Millimeter Wave Antenna for Next Generation Wireless Communication -- 11.1 Introduction -- 11.2 Design of Conformal Antenna Array -- 11.3 Result and Discussion -- 11.4 Conclusion -- References -- 12 H-Shaped Resonators for UWB Bandpass Filter for 5G Applications -- 12.1 Introduction -- 12.2 Overview of Filters -- 12.3 The First Bandpass Filter -- 12.4 The Second Bandpass Filter -- 12.5 The Proposed UWB Bandpass Filter -- 12.6 Conclusion -- References -- 13 Spatially Correlated Channels Investigation: Estimation and Hardening in Millimeter-Wave Massive MIMO Systems -- 13.1 Introduction -- 13.2 Related Works -- 13.2.1 Work Organization -- 13.3 System Model -- 13.3.1 Pilots Sequence Phase -- 13.4 Channel Estimation -- 13.5 Channel Hardening -- 13.6 Spatial Correlation Matrix -- 13.6.1 Spatial Correlation Matrix Over ULC -- 13.6.2 Spatial Correlation Matrix Over UCC -- 13.7 Simulation Results -- 13.8 Conclusion -- References -- Part II Terahertz Technology and Its Applications -- 14 THz Antennas: Applications and Challenges-A Review -- 14.1 Introduction -- 14.2 Single THz Antenna -- 14.3 Array THz Antenna -- 14.4 MIMO THz Antenna -- 14.5 THz Antenna's Challenges -- 14.6 Conclusion -- References -- 15 Fractal MIMO Antenna Design for High-Frequency Terahertz Applications -- 15.1 Introduction -- 15.2 Antenna Geometry -- 15.3 Results Explanation -- 15.4 MIMO Parameters -- 15.5 Conclusion -- References -- 16 Evaluating the Performance of a Transparent MIMO Nano-Antenna for Wireless Health: Addressing Terahertz Challenges in Integrated Medical Device Networks -- 16.1 Introduction -- 16.2 Related Works -- 16.3 Antenna Characteristics -- 16.3.1 AI-Enhanced Antenna Radiation Pattern Optimization. 16.3.2 Enhancing Antenna Gain with Artificial Intelligence -- 16.3.3 Antenna Selection Factors -- 16.3.4 Key Antenna Parameters and Practical Design Guidelines -- 16.4 MIMO Nano-Antenna -- 16.5 Performance Analysis and Discussion -- 16.6 Conclusion -- References -- 17 Design of a Broadband (0.84-1.2 THz) Microstrip Patch Antenna Utilizing Graphene Material and Polyimide Substrate for Terahertz 6G Applications -- 17.1 Introduction -- 17.2 Presentation of Graphene -- 17.3 Design of the Proposed Graphene Patch Antenna -- 17.4 Simulation Results and Discussion -- 17.5 Comparison Analysis -- 17.6 Conclusion -- References -- 18 Investigation on LP-OFDM for THz Application -- 18.1 Introduction -- 18.2 The LP-OFDM System -- 18.2.1 Description of the LP-OFDM -- 18.2.2 LP-OFDM Signal Expressions -- 18.2.3 The Choice of the Linear Precoding Matrix -- 18.2.4 Receiving LP-OFDM Signals -- 18.2.5 Characteristics of an LP-OFDM Signal -- 18.3 Formulation of the BER Maximization Problem -- 18.3.1 The Classic Method -- 18.3.2 Improvement of the LP-LCG Method -- 18.4 Simulation Results and Discussion -- 18.4.1 Performance of the Proposed System -- 18.4.2 Comparison of the Different Solutions -- 18.5 Conclusion -- References -- 19 Terahertz Technology and Its Importance in the Field of Biomedical Application: A Review -- 19.1 Introduction -- 19.2 Terahertz Technology: A Historical Perspective -- 19.2.1 Early Research -- 19.2.2 Key Developments in 1980s-1990s -- 19.2.3 Applications and Progress in 2000s-2010s -- 19.2.4 Advancements in Terahertz Technology Post-2010 -- 19.2.5 Major Advancements 2010-2023 -- 19.3 Biomedical Applications of Terahertz Technology -- 19.3.1 Terahertz Imaging -- 19.3.2 Advantages of THz for Heart Attack Detection -- 19.3.3 Terahertz Spectroscopy for Disease Diagnosis -- 19.3.4 Advantages of Terahertz Technology in Brain Tumour Detection. 19.4 Importance of Terahertz Technology in Biomedicine. |
| Record Nr. | UNINA-9910878044803321 |
El Ghzaoui Mohammed
|
||
| Cham : , : Springer, , 2024 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
Recent Advances in Graphene Nanophotonics / / edited by Shobhit K. Patel, Sofyan A. Taya, Sudipta Das, K. Vasu Babu
| Recent Advances in Graphene Nanophotonics / / edited by Shobhit K. Patel, Sofyan A. Taya, Sudipta Das, K. Vasu Babu |
| Autore | Patel Shobhit K |
| Edizione | [1st ed. 2023.] |
| Pubbl/distr/stampa | Cham : , : Springer Nature Switzerland : , : Imprint : Springer, , 2023 |
| Descrizione fisica | 1 online resource (379 pages) |
| Disciplina | 621.365 |
| Altri autori (Persone) |
TayaSofyan A
DasSudipta Vasu BabuK |
| Collana | Advanced Structured Materials |
| Soggetto topico |
Nanophotonics
Plasmonics Optical materials Semiconductors Nanobiotechnology Condensed matter Solid state physics Nanophotonics and Plasmonics Optical Materials Condensed Matter Physics Electronic Devices |
| Soggetto non controllato |
Electronics
Semiconductors Biotechnology Materials Condensed Matter Optics Technology & Engineering Science |
| ISBN |
9783031289422
9783031289415 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto | Graphene Based Nanomaterials -- High-Performance Metric of Graphene-based Heterojunction LEDs and PDs in Visible Light Communication Systems -- Variants of Graphene Nanoribbon (GNR) Interconnects for THz Applications -- A Study on Graphene Based Sensor Devices -- Graphene: A Promising Material for Flexible Electronic Devices -- Catalytic Performance of Graphene-based Nanocomposites -- Graphene-based Nanophotonic Biosensors -- An Investigation on Unique Graphene-based THz Antenna -- Two-Dimensional Carbon Nanomaterial-Based Biosensors: Micro-machines for Advancing the Medical Diagnosis -- Micro-Sized Graphene-based UWB Annular Ring Patch Antenna for Short-Range High-Speed Terahertz Wireless Systems -- Surrogate Optimization Assisted Dual Band THz Inverted F Coplanar Graphene Antenna -- Recent Advances in Graphene Oxide- Ferrite Hybrid Framework as Radar Absorbing Material -- Graphene-Based THz Antenna: Rudiments, Fabrication, and Forthcoming Opportunity -- Design of Monopole Ground Graphene Disc Inserted THz Antenna for Future Wireless Systems -- Graphene Based D-shaped Gold Coated Photonic Crystal Fiber for Transformer Oil Moisture Sensing -- Recent Advances in Graphene Based Adsorbents for Fluoride Removal from Groundwater -- Design and Analysis of Fractal-based THz Antenna with Co-axial Feeding Technique for Wireless Applications -- Application of Graphene, its Derivatives, and their Nanocomposites. . |
| Record Nr. | UNINA-9910726273003321 |
|
Patel Shobhit K
|
||
| Cham : , : Springer Nature Switzerland : , : Imprint : Springer, , 2023 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
Terahertz devices, circuits and systems : materials, methods and applications / / edited by Sudipta Das, Anveshkumar Nella, and Shobhit K. Patel
| Terahertz devices, circuits and systems : materials, methods and applications / / edited by Sudipta Das, Anveshkumar Nella, and Shobhit K. Patel |
| Pubbl/distr/stampa | Singapore : , : Springer, , [2022] |
| Descrizione fisica | 1 online resource (316 pages) |
| Disciplina | 621.3813 |
| Soggetto topico | Terahertz technology |
| ISBN | 981-19-4105-X |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Intro -- Preface -- Contents -- High-Efficiency Hexagonal-Shaped Quad Element MIMO Antenna for Terahertz Applications -- 1 Introduction -- 2 Antenna Design Layout -- 2.1 Quad Element Antenna Design -- 3 Parametric Analysis -- 4 Results and Discussion -- 5 MIMO Diversity Performance -- 6 Losses and Terahertz Channel Capacity -- 6.1 Channel Capacity -- 7 Conclusion -- References -- An Ultra-Thin Octad-Band THz Metamaterial Absorber with Polarization-Insensitivity for Sensor Applications -- 1 Introduction -- 2 Electromagnetic Metamaterial Absorber -- 2.1 Proposed Terahertz Absorber Design -- 2.2 Numerically Simulated Results -- 2.3 Effective Material Parameters -- 3 Surface-Current Distributions and Electric Field Distributions -- 4 Equivalent Circuit Diagram -- 5 Effects of Geometrical Parameters Variations -- 6 Sensor Applications -- 7 Conclusions -- References -- A Terahertz-Based Graphene Metasurface Sensor for Hemoglobin Detection with High Q Factor and Low Figure of Merit -- 1 Introduction -- 2 Design and Modeling -- 2.1 Graphene Conductivity Analysis -- 2.2 Performance-Defining Parameters for Proposed Sensor -- 3 Results and Discussion -- 4 Conclusion -- References -- Design and Analysis of a CPW-Fed Fractal MIMO THz Antenna Using an Array of Parasitic Elements -- 1 Introduction -- 2 Antenna Geometry and Analysis -- 3 Results Analysis -- 4 MIMO Analysis -- 5 Conclusions -- References -- Generation and Detection of Free-Space Terahertz Waveforms -- 1 Introduction -- 2 The Generation and Detection System -- 3 GaAs Photoconductive Terahertz Emitters -- 3.1 Theoretical Framework -- 3.2 Experimental Framework -- 4 ZnSe Photoconductive Terahertz Emitters -- 4.1 Theoretical Framework -- 4.2 Experimental Framework -- 5 ZnSe Electro-optic Terahertz Detectors -- 5.1 Theoretical Framework -- 5.2 Experimental Framework -- 6 Conclusions -- References.
Design of a Frequency Reconfigurable Low Noise Amplifier for the Terahertz Band -- 1 Introduction -- 2 The RF Receiver -- 3 The LNA Design Characteristics: Technical Background -- 4 LNA Design -- 4.1 Transistor Technology and Characteristics -- 4.2 The Proposed LNA -- 4.3 Case Study: Airport Ground Traffic Management -- 5 Simulation Results -- 5.1 DC Characteristics -- 5.2 S_Parameters -- 5.3 Noise Figure -- 5.4 Stability -- 5.5 Linearity -- 6 Conclusion -- References -- SIMO Array Characterized THz Antenna Resonating at Multiband Ultra High Frequency Range for 6G Wireless Applications -- 1 Introduction -- 2 Proposed Antenna Design and Analysis -- 2.1 Single Antenna Element -- 2.2 Proposed Single Element Antenna with Ground Structure -- 3 Antenna Array Structure Simulated for Various Substrate -- 3.1 Development of Array from Single Antenna -- 3.2 Substrate Selection for Array Based on Performance -- 4 Conclusion -- References -- Design and Analysis of a Tri-band Dielectric Resonator Antenna for Terahertz Applications -- 1 Introduction -- 2 Dielectric Resonator Antenna Design -- 2.1 Antenna Geometry -- 2.2 Parametric Study -- 3 Dielectric Resonator Antenna Design -- 4 Conclusion -- References -- III-Nitride HEMTs for THz Applications -- 1 Introduction -- 2 Operation Principle of HEMT -- 2.1 Origin of 2DEG -- 2.2 RF and THz Parameters -- 3 State-of-the-Art Research on III-Nitride HEMTs for THz Applications -- 3.1 Self-Mixing in GaN-Based HEMT for THz Detector -- 3.2 THz Amplification in GaN-Based HEMTs -- 3.3 THz Generation in GaN-Based HEMT -- 4 Conclusion -- References -- An Analysis on Wireless Communication in 6G THz Network and Their Challenges -- 1 Introduction -- 2 Building Block of 6G and THz Communication -- 2.1 Structure of Het-Cloud -- 2.2 Information Transmission Middle Networks: High Quick Discovery and Transmission Based Infrastructure. 2.3 Acceleration of Hardware -- 3 Technical Requirements and Consideration Towards 6G THz Mobile Communication -- 3.1 Towards 6th Generation Terahertz Full Stack End-End Network -- 3.2 Enabled Wireless Communication in 6G Terahertz -- 3.3 Revolution of 6G Terahertz -- 4 Terahertz Frequency Challenges -- 5 Advantages of Terahertz Communication -- 6 Disadvantages of Terahertz Communication -- 7 Comparing Performance of Mobile Network -- 8 Conclusion -- References -- Antennas for THz Communication: Fundamentals, Design Structures, and Current Trends -- 1 Motivation for THz Communication -- 2 Different Terahertz Antenna Structures for the Communication -- 2.1 On-chip THz Antenna -- 2.2 Ceramic-Composite THz Lens Antenna -- 2.3 Dipole Antenna with Integrated Balun for Broadband THz On-chip Transition -- 2.4 THz Planner Antenna Using Photonic Crystal -- 2.5 Leaky Wave Antenna for Sub-Terahertz -- 2.6 Metamaterial-Based Diffracted Ground-Based MPA with Mender Line Approach -- 2.7 Graphene-Based THz Holographic Antenna -- 3 Proposed THz MIMO Antenna Structure -- 3.1 Introduction of Proposed Design -- 3.2 Design and Modelling -- 3.3 Discussion About Results -- 3.4 Conclusion -- 4 Current Trends and Different Applications in THz Communication -- 4.1 Water Dynamics Are Sensing by THz Waves -- 4.2 Detections of Protein -- 4.3 Plasma Wave-Based THz Camera -- 5 Future Trends -- 6 Conclusion -- References -- Compact Photonic Crystal Fiber for Sensing Applications in the THz Regime -- 1 Introduction -- 2 Conventional Optical Fiber Versus PCFs -- 3 Classifications of PCF -- 3.1 High Index Guiding PCF -- 3.2 Hollow Core PCF -- 4 Classifications of Fiber Optical Sensor -- 5 Different Structure of PCF Chemical Sensors in THz Regime -- 6 Different Structure of PCF Biosensors in THz Regime -- 6.1 Blood Components Sensor -- 6.2 Cancer Cells Sensor -- 6.3 Protein Sensor. 6.4 Malaria Sensor -- 7 Milk Sensor -- 8 Gas Sensors -- 9 Environment Sensor -- 10 Conclusions -- References -- Study and Design of the Terahertz Antenna Array -- 1 Introduction -- 2 THz Components -- 2.1 THz sources -- 2.2 THz Detectors -- 2.3 THz Transmission Spectra -- 3 Antennas Adapted to Terahertz Frequencies -- 3.1 The Methodology to Follow to Design a Microstrip Patch Antenna -- 3.2 Results of the Simulations and Discussions -- 3.3 The Comparison of the Results Obtained with Those Available in the Scientific Publications -- 4 Conclusion -- References -- Micromachined Terahertz Metamaterials -- 1 Introduction -- 1.1 Introduction to Metamaterials -- 2 Metamaterials Absorber -- 3 Laser Based Micromachining -- 4 Terahertz Spectroscopy for Characterization -- 5 Conclusion and Future Scope -- References -- THz Design Variable Estimation by Deep Optimization Prior -- 1 Introduction -- 2 THz Scanning System -- 3 Literature Review -- 4 Proposed Methodology -- 4.1 Deep-Optimization -- 4.2 Autoencoder: 3D Model -- 4.3 Architecture of Network -- 5 Result and Analysis -- 5.1 Loss -- 5.2 Accuracy -- 6 Conclusion -- References -- Terahertz Imaging: Timeline and Future Prospects -- 1 Introduction -- 2 A General-Purpose Terahertz Imaging System -- 3 Timeline of Work Done in This Field -- 4 Current Status, Challenges, and Limitations -- 5 Conclusion -- References -- Advances in Signal and Communication Processing for Ultra-High-Speed Terahertz Communications -- 1 Introduction -- 2 Pulse-Based Modulations -- 2.1 Time Spread On-Off Keying -- 2.2 Rate Division Time Spread On-Off Keying -- 2.3 Symbol Rate Hopping TS-OOK -- 2.4 Other Pulse-Based Modulation Schemes -- 3 Single Carrier Versus Multicarrier -- 4 Channel Coding for Terahertz Nanocommunications -- 4.1 Low-Weight Codes -- 4.2 Minimum Energy Channel Code -- 4.3 Nanonetwork Minimum Energy Code. 4.4 Minimum Energy Coding -- 4.5 Low-Weight Channel Code -- 5 Non-coherent Terahertz Receivers -- 6 Conclusion -- References -- Terahertz Antennas - Review and Design -- 1 Introduction -- 2 Development of THz Antennas -- 3 Primary Terahertz Antennas -- 4 Process Technology of Terahertz Antennas -- 5 Challenges in Terahertz Antennas -- 6 Future Advancement in Terahertz Antennas -- 7 Conclusion -- References. |
| Record Nr. | UNINA-9910616361503321 |
| Singapore : , : Springer, , [2022] | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
Terahertz devices, circuits and systems : materials, methods and applications / / edited by Sudipta Das, Anveshkumar Nella, and Shobhit K. Patel
| Terahertz devices, circuits and systems : materials, methods and applications / / edited by Sudipta Das, Anveshkumar Nella, and Shobhit K. Patel |
| Pubbl/distr/stampa | Singapore : , : Springer, , [2022] |
| Descrizione fisica | 1 online resource (316 pages) |
| Disciplina | 621.3813 |
| Soggetto topico | Terahertz technology |
| ISBN | 981-19-4105-X |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Intro -- Preface -- Contents -- High-Efficiency Hexagonal-Shaped Quad Element MIMO Antenna for Terahertz Applications -- 1 Introduction -- 2 Antenna Design Layout -- 2.1 Quad Element Antenna Design -- 3 Parametric Analysis -- 4 Results and Discussion -- 5 MIMO Diversity Performance -- 6 Losses and Terahertz Channel Capacity -- 6.1 Channel Capacity -- 7 Conclusion -- References -- An Ultra-Thin Octad-Band THz Metamaterial Absorber with Polarization-Insensitivity for Sensor Applications -- 1 Introduction -- 2 Electromagnetic Metamaterial Absorber -- 2.1 Proposed Terahertz Absorber Design -- 2.2 Numerically Simulated Results -- 2.3 Effective Material Parameters -- 3 Surface-Current Distributions and Electric Field Distributions -- 4 Equivalent Circuit Diagram -- 5 Effects of Geometrical Parameters Variations -- 6 Sensor Applications -- 7 Conclusions -- References -- A Terahertz-Based Graphene Metasurface Sensor for Hemoglobin Detection with High Q Factor and Low Figure of Merit -- 1 Introduction -- 2 Design and Modeling -- 2.1 Graphene Conductivity Analysis -- 2.2 Performance-Defining Parameters for Proposed Sensor -- 3 Results and Discussion -- 4 Conclusion -- References -- Design and Analysis of a CPW-Fed Fractal MIMO THz Antenna Using an Array of Parasitic Elements -- 1 Introduction -- 2 Antenna Geometry and Analysis -- 3 Results Analysis -- 4 MIMO Analysis -- 5 Conclusions -- References -- Generation and Detection of Free-Space Terahertz Waveforms -- 1 Introduction -- 2 The Generation and Detection System -- 3 GaAs Photoconductive Terahertz Emitters -- 3.1 Theoretical Framework -- 3.2 Experimental Framework -- 4 ZnSe Photoconductive Terahertz Emitters -- 4.1 Theoretical Framework -- 4.2 Experimental Framework -- 5 ZnSe Electro-optic Terahertz Detectors -- 5.1 Theoretical Framework -- 5.2 Experimental Framework -- 6 Conclusions -- References.
Design of a Frequency Reconfigurable Low Noise Amplifier for the Terahertz Band -- 1 Introduction -- 2 The RF Receiver -- 3 The LNA Design Characteristics: Technical Background -- 4 LNA Design -- 4.1 Transistor Technology and Characteristics -- 4.2 The Proposed LNA -- 4.3 Case Study: Airport Ground Traffic Management -- 5 Simulation Results -- 5.1 DC Characteristics -- 5.2 S_Parameters -- 5.3 Noise Figure -- 5.4 Stability -- 5.5 Linearity -- 6 Conclusion -- References -- SIMO Array Characterized THz Antenna Resonating at Multiband Ultra High Frequency Range for 6G Wireless Applications -- 1 Introduction -- 2 Proposed Antenna Design and Analysis -- 2.1 Single Antenna Element -- 2.2 Proposed Single Element Antenna with Ground Structure -- 3 Antenna Array Structure Simulated for Various Substrate -- 3.1 Development of Array from Single Antenna -- 3.2 Substrate Selection for Array Based on Performance -- 4 Conclusion -- References -- Design and Analysis of a Tri-band Dielectric Resonator Antenna for Terahertz Applications -- 1 Introduction -- 2 Dielectric Resonator Antenna Design -- 2.1 Antenna Geometry -- 2.2 Parametric Study -- 3 Dielectric Resonator Antenna Design -- 4 Conclusion -- References -- III-Nitride HEMTs for THz Applications -- 1 Introduction -- 2 Operation Principle of HEMT -- 2.1 Origin of 2DEG -- 2.2 RF and THz Parameters -- 3 State-of-the-Art Research on III-Nitride HEMTs for THz Applications -- 3.1 Self-Mixing in GaN-Based HEMT for THz Detector -- 3.2 THz Amplification in GaN-Based HEMTs -- 3.3 THz Generation in GaN-Based HEMT -- 4 Conclusion -- References -- An Analysis on Wireless Communication in 6G THz Network and Their Challenges -- 1 Introduction -- 2 Building Block of 6G and THz Communication -- 2.1 Structure of Het-Cloud -- 2.2 Information Transmission Middle Networks: High Quick Discovery and Transmission Based Infrastructure. 2.3 Acceleration of Hardware -- 3 Technical Requirements and Consideration Towards 6G THz Mobile Communication -- 3.1 Towards 6th Generation Terahertz Full Stack End-End Network -- 3.2 Enabled Wireless Communication in 6G Terahertz -- 3.3 Revolution of 6G Terahertz -- 4 Terahertz Frequency Challenges -- 5 Advantages of Terahertz Communication -- 6 Disadvantages of Terahertz Communication -- 7 Comparing Performance of Mobile Network -- 8 Conclusion -- References -- Antennas for THz Communication: Fundamentals, Design Structures, and Current Trends -- 1 Motivation for THz Communication -- 2 Different Terahertz Antenna Structures for the Communication -- 2.1 On-chip THz Antenna -- 2.2 Ceramic-Composite THz Lens Antenna -- 2.3 Dipole Antenna with Integrated Balun for Broadband THz On-chip Transition -- 2.4 THz Planner Antenna Using Photonic Crystal -- 2.5 Leaky Wave Antenna for Sub-Terahertz -- 2.6 Metamaterial-Based Diffracted Ground-Based MPA with Mender Line Approach -- 2.7 Graphene-Based THz Holographic Antenna -- 3 Proposed THz MIMO Antenna Structure -- 3.1 Introduction of Proposed Design -- 3.2 Design and Modelling -- 3.3 Discussion About Results -- 3.4 Conclusion -- 4 Current Trends and Different Applications in THz Communication -- 4.1 Water Dynamics Are Sensing by THz Waves -- 4.2 Detections of Protein -- 4.3 Plasma Wave-Based THz Camera -- 5 Future Trends -- 6 Conclusion -- References -- Compact Photonic Crystal Fiber for Sensing Applications in the THz Regime -- 1 Introduction -- 2 Conventional Optical Fiber Versus PCFs -- 3 Classifications of PCF -- 3.1 High Index Guiding PCF -- 3.2 Hollow Core PCF -- 4 Classifications of Fiber Optical Sensor -- 5 Different Structure of PCF Chemical Sensors in THz Regime -- 6 Different Structure of PCF Biosensors in THz Regime -- 6.1 Blood Components Sensor -- 6.2 Cancer Cells Sensor -- 6.3 Protein Sensor. 6.4 Malaria Sensor -- 7 Milk Sensor -- 8 Gas Sensors -- 9 Environment Sensor -- 10 Conclusions -- References -- Study and Design of the Terahertz Antenna Array -- 1 Introduction -- 2 THz Components -- 2.1 THz sources -- 2.2 THz Detectors -- 2.3 THz Transmission Spectra -- 3 Antennas Adapted to Terahertz Frequencies -- 3.1 The Methodology to Follow to Design a Microstrip Patch Antenna -- 3.2 Results of the Simulations and Discussions -- 3.3 The Comparison of the Results Obtained with Those Available in the Scientific Publications -- 4 Conclusion -- References -- Micromachined Terahertz Metamaterials -- 1 Introduction -- 1.1 Introduction to Metamaterials -- 2 Metamaterials Absorber -- 3 Laser Based Micromachining -- 4 Terahertz Spectroscopy for Characterization -- 5 Conclusion and Future Scope -- References -- THz Design Variable Estimation by Deep Optimization Prior -- 1 Introduction -- 2 THz Scanning System -- 3 Literature Review -- 4 Proposed Methodology -- 4.1 Deep-Optimization -- 4.2 Autoencoder: 3D Model -- 4.3 Architecture of Network -- 5 Result and Analysis -- 5.1 Loss -- 5.2 Accuracy -- 6 Conclusion -- References -- Terahertz Imaging: Timeline and Future Prospects -- 1 Introduction -- 2 A General-Purpose Terahertz Imaging System -- 3 Timeline of Work Done in This Field -- 4 Current Status, Challenges, and Limitations -- 5 Conclusion -- References -- Advances in Signal and Communication Processing for Ultra-High-Speed Terahertz Communications -- 1 Introduction -- 2 Pulse-Based Modulations -- 2.1 Time Spread On-Off Keying -- 2.2 Rate Division Time Spread On-Off Keying -- 2.3 Symbol Rate Hopping TS-OOK -- 2.4 Other Pulse-Based Modulation Schemes -- 3 Single Carrier Versus Multicarrier -- 4 Channel Coding for Terahertz Nanocommunications -- 4.1 Low-Weight Codes -- 4.2 Minimum Energy Channel Code -- 4.3 Nanonetwork Minimum Energy Code. 4.4 Minimum Energy Coding -- 4.5 Low-Weight Channel Code -- 5 Non-coherent Terahertz Receivers -- 6 Conclusion -- References -- Terahertz Antennas - Review and Design -- 1 Introduction -- 2 Development of THz Antennas -- 3 Primary Terahertz Antennas -- 4 Process Technology of Terahertz Antennas -- 5 Challenges in Terahertz Antennas -- 6 Future Advancement in Terahertz Antennas -- 7 Conclusion -- References. |
| Record Nr. | UNISA-996490350503316 |
| Singapore : , : Springer, , [2022] | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. di Salerno | ||
| ||