1.

Record Nr.

UNINA9910480354303321

Autore

Hausman Howard

Titolo

Microwave power amplifier design with MMIC modules / / Howard Hausman

Pubbl/distr/stampa

Norwood, Massachusetts : , : Artech House, , [2018]

[Piscataqay, New Jersey] : , : IEEE Xplore, , [2018]

ISBN

1-63081-525-X

Descrizione fisica

1 online resource (xxii, 366 pages)

Collana

Artech House microwave library

Disciplina

621.38412

Soggetti

Power amplifiers - Design and construction

Microwave amplifiers - Design and construction

Microwave equipment - Circuits

Electronic books.

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Nota di bibliografia

Includes bibliographical references and index.

Nota di contenuto

Intro; Microwave Power Amplifier Design with MMIC Modules; Contents; Preface; Introduction; Part I: Useful Microwave Design Concepts; Part II: Designing the Power Amplifier; Part III: Designing the Power Amplifier System; Summary; Chapter 1 Introduction; 1.1 Introduction to Designing Microwave Solid State Power Amplifiers; 1.2 Applications of SSPAs; 1.3 A Typical SSPA Configuration; 1.4 Typical Documents Starting a Project; 1.5 General Format of the SCD; 1.5.1 Paragraph 1.0: Scope; 1.5.2 Paragraph 2.0: Applicable Documents; 1.5.3 Paragraph 3.0: Requirements; 1.5.4 Paragraph 4.0: Verification.

1.5.5 Paragraph 5.0: Packaging1.5.6 Paragraph 6.0: Notes; 1.6 Requirements Section of an SCD; 1.6.1 Electrical Requirements; 1.6.2 Mechanical Requirements; 1.6.3 Environmental Requirements; 1.6.4 Other Design Criteria; References; Part I Useful Microwave Design Concepts; Chapter 2 Lumped Components in RF and Microwave Circuitry; 2.1 Applicability of Lumped Element Analysis; 2.1.1 Calculating Wavelengths; 2.1.2 Example: Calculating Wavelengths for Lumped Circuit Analysis; 2.2 Capacitor Characteristics at High Frequencies; 2.2.1 Single-Layer and Multilayer Capacitor Construction.

2.2.2 High-Frequency Capacitor Models2.2.3 Capacitor Losses (Q);



2.2.4 Capacitor Resonance; 2.3 Resistor Characteristics at High Frequencies; 2.3.1 High-Frequency Surface Mount Resistors; 2.3.2 Flip-Chip Surface Mount Resistors; 2.3.3 Thick-Film and Thin-Film Surface-Mount Resistors; 2.3.4 High-Frequency Effects of Thick-Film and Thin-Film Resistors; 2.3.5 Notes on Thin-Film Resistors; 2.3.6 Notes on Thick-Film Resistors; 2.4 Inductors; 2.4.1 Calculating Inductance of a Cylindrical Coil of Wire; 2.4.2 Inductors at High Frequencies; 2.4.3 Inductors at Resonance.

2.4.4 Inductance of a Straight Wire2.4.5 Planar Spiral Inductors; 2.4.6 Conical Inductors; 2.4.7 Inductance of Via Holes; 2.4.8 Inductance of Bond Wire; 2.4.9 Inductance of Flat or Ribbon Wire; References; Chapter 3 Transmission Lines; 3.1 Introduction to Transmission Line Theory; 3.2 Common Transmission Line Topologies; 3.3 Transmission Line Characteristics Using Lumped Circuit Elements; 3.3.1 Distributed Lumped Constant Model; 3.3.2 Modeling a Microstrip Transmission Line with Distributed Lumped Elements; 3.3.3 Characteristic Impedance of Transmission Line from the Lumped Circuit Model.

Sommario/riassunto

Solid state power amplifiers (SSPA) are a critical part of many microwave systems. Designing SSPAs with monolithic microwave integrated circuits (MMIC) has boosted device performance to much higher levels focused on PA modules. This cutting-edge book offers engineers practical guidance in selecting the best power amplifier module for a particular application and interfacing the selected module with other power amplifier modules in the system. It also explains how to identify and mitigate peripheral issues concerning the PA modules, SSPAs, and microwave systems.nnThis authoritative volume presents the critical techniques and underpinnings of SSPA design, enabling professionals to optimize device and system performance. Engineers gain the knowledge they need to evaluate the optimum topologies for the design of a chain of microwave devices, including power amplifiers. Additionally, the book addresses the interface between the microwave subsystems and the primary DC power, the control and monitoring circuits, and the thermal and EMI paths. Packed with 240 illustrations and over 430 equations, this detailed book provides the practical tools engineers need for their challenging projects in the field.



2.

Record Nr.

UNINA9910986126503321

Autore

Gupta Deepti

Titolo

Evolution of English Language Teaching : A Machine-Generated Literature Overview / / edited by Deepti Gupta

Pubbl/distr/stampa

Singapore : , : Springer Nature Singapore : , : Imprint : Springer, , 2025

ISBN

9789819618248

9789819618231

Edizione

[1st ed. 2025.]

Descrizione fisica

1 online resource (365 pages)

Disciplina

418.0071

Soggetti

Language and languages - Study and teaching

Teachers - Training of

Language Teaching and Learning

Teaching and Teacher Education

Language Education

Llenguatge i llengües

Ensenyament de llengües estrangeres

Formació del professorat

Lingüística aplicada

Material didàctic

Tecnologia educativa

Anglès

Llibres electrònics

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Nota di contenuto

1. Introduction -- 2. 2001-2014: The Years of Consolidation -- 3. 2015-17: The Years of Reinforcement -- 4. 2018-19: Exploring the Territory -- 5. 2020-21: Changing Orientations -- 6. 2022: Mobilization and Optimization -- 7. 2023 Onwards: Future Readiness.

Sommario/riassunto

This book offers a machine-generated literature survey review of the vibrant history and multifaceted dimensions of English Language Teaching (ELT). It discusses its remarkable evolution and its profound impact across various fields. Its impact extends beyond education: influencing psychology, developmental studies, communication



strategies for leaders and language proficiency assessment for migrants and job seekers. Each chapter is organized by the book editor along a chronological progression and begins with a human-written introduction. Each chapter chronicles a stage in ELT's growth, using publication dates as reference points and provides summaries of selected publications, offering readers the freedom to explore the various aspects of ELT. This reader-friendly volume accommodates diverse readers, including students, educators, researchers, policymakers and anyone intrigued by the intricate tapestry of English Language Teaching. It's a comprehensive journey through the evolution of ELT, reflecting its synchronous and diachronic dimensions, all within a single, accessible volume. The auto-summaries have been generated by a recursive clustering algorithm via the Dimensions Auto-summarizer by Digital Science. The editors of this book selected which Springer Nature content should be auto-summarized and decided its order of appearance. Please be aware that these are extractive auto-summaries, which consist of original sentences, but are not representative of the original paper, since we do not show the full length of the publication. Please note that only published SN content is represented here and that machine-generated books are still at an experimental stage. Deepti Gupta is Professor of English at the Panjab University Chandigarh, India, where she has been teaching for more than three decades and has been guiding research in ELT. A passionate teacher trainer and action researcher, she has written numerous research papers and five books.