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Broadband Microwave Amplifiers

Broadband Microwave Amplifiers by Bal Virdee
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Here is your complete resource for state-of-the-art and cutting-edge techniques used for designing and fabricating broadband amplifiers. The book covers the complete design cycle, detailing each stage in a practical, hands-on manner to enable one to quickly gain specialist knowledge and insight into the intricacies of broadband amplifier design. Beginning with a discussion of amplifier theory and architecture, it delves into procedures for carrying out small-signal and large-signal characterization that are essential to the accurate modeling of broadband amplifiers. You learn how DPHEMT transistors deliver superior performance and how to use these devices in the simulation and design of broadband amplifiers. All the necessary analytical and practical information is provided on the design of broadband amplifiers via real examples.

This practical reference illustrates the formulation of small- and large-signal device models to help you accurately simulate the amplifier’s performance. Moreover, the book covers all the practical aspects and circuit components used in the fabrication. It is filled with practical design examples of various types of amplifiers that are applicable in broadband systems such as optical communications, satellite communications, spread-spectrum communications, wireless local area networks, electronic warfare, instrumentation, and phased array radar. In addition to broadband amplifiers, it also provides in-depth treatment of ultra-broadband microwave amplifiers.


Overview on Broadband Amplifiers - Historical Perspective on Microwave Amplifiers. Broadband Amplifiers. Review of Various Broadband Amplifiers - Reactively Matched Amplifiers, Traveling Wave Distributed Amplifiers, Broadband Feedback and Lossy Matched Amplifiers, Cascaded Single-Stage Distributed Amplifiers. References.

Principles and Applications of Distributed Amplifiers - Introduction. Conventional Traveling Wave Distributed Amplifier (TWDA). Available Gain of a Traveling Wave Distributed Amplifier. Cascaded Single-Stage Distributed Amplifier (CSSDA). Available Power Gain of the Lossless CSSDA. Analysis of Interstage Characteristic Impedance on the Lossless CSSDA. Output Current of the CSSDA. Output Voltage of the CSSDA. Characteristic Features of CSSDA. Other Applications of Distributed Amplifiers. Potential Applications of CSSDA. References.

Device Structure and Mode of Operation - Introduction. The GaAs MESFET - Structure and Operation. HEMT Based Devices (HEMT, SPHEMT and DPHEMT) - Structure and Operation. Summary. References.

Device Characterization and Modeling - Introduction. Device Characterization. Basis of Calibration. Microstrip Test Fixture and Calibration Standards. Small-Signal Measurements. Pulsed DC I-V Measurements. Small-Signal Device Modeling - Principle of Model Extraction Procedure, Extraction of ‘Cold’ Component Values, Extraction of ‘Hot’ Components Values, Small-Signal Modeling. Large-Signal Device Modeling - Large-Signal Device Model, Non-linear Analysis Techniques, Large-Signal Modeling Techniques, Modeled and Measured Results. References.

Amplifier Class of Operation - Introduction. Class A Amplifier. Class B Amplifier. Class AB Amplifier. References.

Design of Broadband Microwave Amplifiers - Introduction. Multistage Broadband Amplifier Design. Output Power and Power Added Efficiency. Design of Traveling Wave Distributed Amplifiers. Design of Broadband Feedback Amplifiers. Cascaded Reactively Terminated Single-Stage Distributed Amplifiers (CRTSSDA) - Principles of Cascaded Reactively Terminated Single-Stage Distributed Amplifiers, Design of High Gain CRTSSDA, Design of Power CRTSSDA. Design of High Dynamic Range Broadband Amplifier. Broadband Feedback Amplifiers Employing Current Sharing. References.

Fabrication of Broadband Amplifiers - Introduction. Practical Design Considerations and Fabrication Procedure. Circuit Layout and Mask Generation. Fabrication of Test Carriers and Amplifier Housings. References.

Ultra-Broadband Hybrid and Broadband Monolithic Amplifiers - Introduction. Ultra-Broadband Hybrid MIC Amplifier. Ultra-Broadband Hybrid Amplifier as Data Modulator Driver. Broadband MMIC Distributed Amplifier. References.

Appendix - Artificial Transmission Line Theory Related to Distributed Amplifiers.

Bal S. Virdee is a senior lecturer at London Metropolitan University where he is leads the Microwave Research Group and is the Director of London Metropolitan Microwaves Center. Previously he was a research and development engineer for Philips and has taught at various UK Universities. A Fellow of the IEE and a Chartered Engineer, he received a M.Phil. degree in Electronic Engineering from the University of Leeds and a Ph.D. in Electronic Engineering from the University of London.

Avtar S. Virdee is a technical consultant at Filtronic Components Ltd., where he works on the design, development and production of broadband amplifiers and microwave components for EW and optical systems. He previously worked at British Aerospace, Plessey Microwave Electronics, and Electtronica (UK) Ltd. A Fellow of the IEE, Senior Member of the IEEE, and a Chartered Engineer, he received a M.Sc. in Microwave Electronics from the University of Cranfield and a Ph.D. from the University of North London, where he specialized in efficiency improvement of broadband microwave amplifiers.

Ben Y. Banyamin is a senior engineer involved with the design and development of third generation mobile phones at Ericsson Limited. He previously worked at Wireless System International Limited where he designed power amplifiers for 3G base-station. He is a member of the IEE and IEEE. Recipient of the Japan Microwave Prize in 1998, he received his B.Eng. in Electrical and Electronics Engineering and a Ph.D. in the field of communications systems from Brunel University.

Artech House; September 2004
251 pages; ISBN 9781580538930
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Title: Broadband Microwave Amplifiers
Author: Bal Virdee; Avtar Virdee; Ben Banyamin