Broadband Microwave Amplifiers

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 referenceillustrates the formulation of small- and large-signal device models to helpyou accurately simulate the amplifier’s performance. Moreover, the book coversall the practical aspects and circuit components used in the fabrication. It isfilled with practical design examples of various types of amplifiers that areapplicable in broadband systems such as optical communications, satellitecommunications, spread-spectrum communications, wireless local area networks,electronic warfare, instrumentation, and phased array radar. In addition tobroadband amplifiers, it also provides in-depth treatment of ultra-broadbandmicrowave amplifiers.

Contents:

Overviewon Broadband Amplifiers - Historical Perspective on Microwave Amplifiers.Broadband Amplifiers. Review of Various Broadband Amplifiers - ReactivelyMatched Amplifiers, Traveling Wave Distributed Amplifiers, Broadband Feedbackand 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-StageDistributed Amplifier (CSSDA). Available Power Gain of the Lossless CSSDA. Analysisof Interstage Characteristic Impedance on the Lossless CSSDA. Output Current ofthe CSSDA. Output Voltage of the CSSDA. Characteristic Features of CSSDA. OtherApplications of Distributed Amplifiers. Potential Applications of CSSDA.References.

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

DeviceCharacterization and Modeling - Introduction. Device Characterization. Basis ofCalibration. Microstrip Test Fixture and Calibration Standards. Small-SignalMeasurements. 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-SignalDevice Modeling - Large-Signal Device Model, Non-linear Analysis Techniques,Large-Signal Modeling Techniques, Modeled and Measured Results. References.

Amplifier Classof Operation - Introduction. Class A Amplifier. Class B Amplifier. Class ABAmplifier. References.

Designof Broadband Microwave Amplifiers - Introduction. Multistage BroadbandAmplifier Design. Output Power and Power Added Efficiency. Design of TravelingWave Distributed Amplifiers. Design of Broadband Feedback Amplifiers. CascadedReactively Terminated Single-Stage Distributed Amplifiers (CRTSSDA) -Principles of Cascaded Reactively Terminated Single-Stage DistributedAmplifiers, Design of High Gain CRTSSDA, Design of Power CRTSSDA. Design ofHigh Dynamic Range Broadband Amplifier. Broadband Feedback Amplifiers EmployingCurrent Sharing. References.

Fabrication of Broadband Amplifiers - Introduction. PracticalDesign Considerations and Fabrication Procedure. Circuit Layout and MaskGeneration. Fabrication of Test Carriers and Amplifier Housings. References.

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

Appendix - Artificial Transmission Line Theory Related toDistributed Amplifiers.

Bal S. Virdee is a senior lecturer at London Metropolitan Universitywhere he is leads the Microwave Research Group and is the Director of LondonMetropolitan Microwaves Center. Previously he was a research and developmentengineer for Philips and has taught at various UK Universities. A Fellow of theIEE and a Chartered Engineer, he received a M.Phil. degree in ElectronicEngineering from the University of Leeds and a Ph.D. in Electronic Engineeringfrom 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 broadbandamplifiers and microwave components for EW and optical systems. He previouslyworked at British Aerospace, Plessey Microwave Electronics, and Electtronica(UK) Ltd. A Fellow of the IEE, Senior Member of the IEEE, and a CharteredEngineer, he received a M.Sc. in Microwave Electronics from the University ofCranfield and a Ph.D. from the University of North London, where he specializedin efficiency improvement of broadband microwave amplifiers.

BenY. 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.