1.

Record Nr.

UNINA9910817302003321

Autore

You Kok Yeow

Titolo

RF Coaxial Slot Radiators

Pubbl/distr/stampa

Norwood : , : Artech House, , 2015

[Piscataqay, New Jersey] : , : IEEE Xplore, , [2015]

ISBN

1-60807-823-X

Descrizione fisica

1 online resource (322 pages) : illustrations

Collana

Artech House antennas and propagation library

Disciplina

621.382/4

Soggetti

Antennas (Electronics) - Mathematical models

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Nota di bibliografia

Includes bibliographical references and index.

Nota di contenuto

Machine generated contents note: 1.1.Analytical and Numerical Analysis of Coaxial Slot Radiators -- 1.2.Wave Theory of Coaxial Radiators -- 1.2.1.The Propagation Wave in the Coaxial Line (z<or=to0 Region) -- 1.2.2.The Scattering Wave from Coaxial Radiators (z>or=to0 0 Region) -- 1.3.The Relationship Between Circuit Theory and Wave Theory -- 1.3.1.The Equivalent Circuit in the Coaxial Line (z 0 Region) -- References -- Selected Bibliography -- 2.1.Theoretical Background -- 2.2.Equivalent Lumped-Element Circuits Modeling -- 2.3.Admittance Modeling -- 2.3.1.Admittance Integral Modeling -- 2.3.2.Series Admittance Solutions -- 2.4.Rational Expression Modeling -- References -- Selected Bibliography -- 3.1.Boundary-Matching Method Modeling -- 3.1.1.Reflection in a Stratified Medium -- 3.1.2.Integral Admittance Model -- 3.1.3.Integral Admittance Models (Practical Cases) -- 3.2.Image Method Modeling -- 3.3.Semi-Empirical Closed-Form Modeling -- 3.3.1.Total Capacitance CT in the Finite-Layer Medium -- 3.3.2.Effective Complex Relative Permittivity, Eeff -- 3.3.3.Empirical Admittance Model of a Finite-Thickness Sample -- References -- Selected Bibliography -- 4.1.Theoretical Background -- 4.1.1.Current Distribution on Dipole and Monopole -- 4.1.2.Pocklington's Equation -- 4.1.3.Halien's Equation -- 4.2.Induced Electromagnetic Field (EMF) Modeling -- 4.3.End Correction for a Monopole Driven from a Coaxial Line -- 4.4.Equivalent Lumped-Element Circuits Modeling -- 4.4.1.Equivalent Circuits Modeling (in Free Space) -- 4.4.2.Equivalent Circuits Modeling (in Dielectric Medium) -- 4.5.Mutual Impedance -- 4.5.1.



Two-Element Array -- 4.5.2.Arrays of Three or More Elements -- References -- Selected Bibliography -- 5.1.Theoretical Background -- 5.2.Transmission-Line Impedance Modeling -- 5.2.1.Propagation Constant kL and Characteristic Impedance ZC -- 5.2.2.Characteristic Impedance Zc -- 5.2.3.Input Impedance ZIN at the Driving Point -- 5.3.Integral Electric Field Modeling -- 5.3.1.Electromagnetic Fields in a Dielectric-Coated Layer (Region 2) -- 5.3.2.Electromagnetic Fields in a Dissipative Medium (Region 3) -- 5.3.3.Near-Field and Far-Field Integral Formulations -- 5.4.Equivalent Lumped-Element Circuit Modeling -- 5.5.Modified Dielectric-Coated Monopole -- References -- Selected Bibliography -- 6.1.Summary of MoM Computation Steps for Electrostatic Cases -- 6.1.1.Electrostatic Cases -- 6.1.2.Open-Ended Coaxial Probe -- 6.1.3.Dipole -- 6.2.Summary of MoM Computation Steps for Electrodynamics Cases -- 6.2.1.Electrodynamics Cases -- 6.2.2.Open-Ended Coaxial Probe: Governing Equations -- 6.2.3.Dipole: Governing Equations -- 6.2.4.Open-Ended Coaxial Probe: Final Interpretation -- 6.2.5.Dipole: Final Interpretation -- 6.3.Mathematical Background of MoM -- 6.3.1.Point-Matching Method -- 6.4.Summary of Three Kinds of Basis Functions Fn(z) -- 6.4.1.Piecewise Uniform Functions (Rectangular Pulse Functions) -- 6.4.2.Piecewise Linear Functions (Linear Triangular Functions) -- 6.4.3.Piecewise Sinusoidal Functions -- 6.4.4.Galerkin's Method in Basis Functions -- 6.5.Example of Galerkin's MoM Computation -- 6.5.1.Galerkin's Method with Piecewise Sinusoidal Functions -- 6.6.Open-Ended Coaxial Probe -- 6.6.1.Nevels's Equation, Piecewise Uniform Function, and Point- Matching Method -- 6.6.2.Radial Electric Field, EP, Azimuth Magnetic Field, Hø, and Input Admittance, Yin, Interpretations -- 6.7.Center-Fed Dipole -- 6.7.1.Pocklington's Equation (Richmond's Expression), Piecewise Uniform Function, Magnetic Frill Sources, and Point-Matching Method -- 6.7.2.Input Impedance Zin -- 6.7.3.Far Electric Field Eø -- 6.7.4.Halien's Equation, Piecewise Uniform Function, and Point- Matching Method -- 6.7.5.Richmond's Method of Moments, Sinusoidal Pulse Functions, Delta-Gap Sources, and Galerkin's Method -- 6.8.Dielectric-Coated Dipole -- 6.9.Dipole Array -- References -- Selected Bibliography -- 7.1.Mathematical Background of the FDTD -- 7.1.1.Yee's Algorithm -- 7.1.2.MATLAB Codes for 1-D FDTD -- 7.2.Center-Fed Dipole -- 7.2.1.3-D FDTD Subcell Model -- 7.2.2.Improvement of the 3-D FDTD Subcell Model -- 7.2.3.Excitation Source -- 7.2.4.Boundary Conditions for 3-D FDTD -- 7.2.5.Postprocessing -- 7.2.6.MATLAB Codes for the 3-D Subcell FDTD -- 7.3.Monopole Driven from a Coaxial Line and an Open-Ended Coaxial Probe -- 7.3.1.1-D Coaxial Transmission-Line Feed Model -- 7.3.2.2-D FDTD Subcell Model -- 7.3.3.Boundary Conditions for the 2-D FDTD -- 7.4.Dielectric-Coated Dipole and Monopole -- 7.5.Heat Transfer from Dipole and Monopole -- References -- Selected Bibliography -- 8.1.Basic RF System to Measure the Reflection Coefficient -- 8.1.1.Time-Domain Reflectometry -- 8.1.2.Frequency-Domain Reflectometry -- 8.1.3.Operating Frequency -- 8.1.4.Commercial Test Instruments -- 8.2.One-Port Calibration -- 8.2.1.Principles of One-Port Calibration -- 8.2.2.Three-Standard Calibration -- 8.2.3.Alternative Three-Standard Calibration -- 8.2.4.One-Standard Calibration -- 8.2.5.De-Embedding Without Any Standard Value -- 8.3.Coaxial Radiator Performance Measurements -- 8.4.Dielectric Measurements Using Coaxial Radiators -- 8.5.Leaky Coaxial Cable Characteristics Measurements -- 8.5.1.Design Rules of Leaky Cable -- 8.5.2.Insertion Loss and Coupling Loss Measurements -- References -- Selected Bibliography -- 9.1.Communication Applications -- 9.1.1.Frequency-Independent Antennas: Log-Periodic Antennas -- 9.1.2.Sleeve Monopole Antennas



-- 9.1.3.Conical Monopole Antennas -- 9.1.4.Disk-Loaded Monopole Antennas -- 9.1.5.Helical Monopole Antennas -- 9.1.6.Insulated Monopole Antennas -- 9.1.7.Dielectric Resonator Monopole Antennas -- 9.1.8.Negative Dielectric Resonator Monopole Antennas -- 9.1.9.Leaky Coaxial Cables -- 9.2.Health and Biomedical Applications -- 9.2.1.Dielectric Database for SAR Evaluation in Human Heads and Hyperthermia Treatment Simulation -- 9.2.2.Hyperthermia Applicators -- 9.2.3.Abnormal Tissues Detector -- 9.3.Agriculture and Food Processing -- 9.3.1.Soil Moisture Monitoring -- 9.3.2.Rubber Latex Quality Measurements -- 9.3.3.Oil Palm Fruit Ripeness Detector -- 9.3.4.Palm Oil Quality Monitoring -- 9.3.5.Rice Grain Moisture and Broken Rate Measurements -- 9.3.6.Fruit Sweetness Detector -- 9.4.Industrial and Scientific Materials Processing -- 9.4.1.Metal Crack Detector -- 9.4.2.Electric Field and Magnetic Field Probes -- References -- Selected Bibliography.