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Microwave Engineering is a vast subject with topics ranging from semiconductor physics to electromagnetic theory. This textbook covers the microwave and RF engineering topics from an Electronic Design Automation (EDA) approach. The topics includes RF and microwave concepts and components, transmission lines, network parameters, maximum power transfer requirements, lumped and distributed impedance matching, and several linear amplifier designs. Almost all subject matters covered in the textbook are accompanied by examples that are solved using the latest version of Keysight ADS software. University students and practicing engineers will find this book both as a potent learning tool and as a reference guide to quickly setup designs using the ADS software. The book thoroughly covers the basics as well as introducing techniques that may not be familiar to some engineers. This includes subjects such as the frequent use of the MATLAB Script capability.
This is the eBook of the printed book and may not include any media, website access codes, or print supplements that may come packaged with the bound book. Today’s Up-to-Date, Step-by-Step Guide to Designing Active Microwave Circuits Microwave Circuit Design is a complete guide to modern circuit design, including simulation tutorials that demonstrate Keysight Technologies’ Advanced Design System (ADS), one of today’s most widely used electronic design automation packages. And the software-based circuit design techniques that Yeom presents can be easily adapted for any modern tool or environment. Throughout, author Kyung-Whan Yeom uses the physical interpretation of basic concepts and concrete examples—not exhaustive calculations—to clearly and concisely explain the essential theory required to design microwave circuits, including passive and active device concepts, transmission line theory, and the basics of high-frequency measurement. To bridge the gap between theory and practice, Yeom presents real-world, hands-on examples focused on key elements of modern communication systems, radars, and other microwave transmitters and receivers. Practical coverage includes Up-to-date microwave simulation design examples based on ADS and easily adaptable to any simulator Detailed, step-by-step derivations of key design parameters related to procedures, devices, and performance Relevant, hands-on problem sets in every chapter Clear discussions of microwave IC categorization and roles; passive device impedances and equivalent circuits; coaxial and microstrip transmission lines; active devices (FET, BJT, DC Bias); and impedance matching A complete, step-by-step introduction to circuit simulation using the ADS toolset and window framework Low noise amplifier (LNA) design: gains, stability, conjugate matching, and noise circles Power amplifier (PA) design: optimum load impedances, classification, linearity, and composite PAs Microwave oscillator design: oscillation conditions, phase noise, basic circuits, and dielectric resonators Phase lock loops (PLL) design: configuration, operation, components, and loop filters Mixer design: specifications, Schottky diodes, qualitative analysis of mixers (SEM, SBM, DBM), and quantitative analysis of single-ended mixer (SEM) Microwave Circuit Design brings together all the practical skills graduate students and professionals need to successfully design today’s active microwave circuits.
Unlike the many traditional textbooks written mainly for the classroom teaching, the High Frequency Circuit Design book can be taught in a classroom or in a computer lab where students can use a very low-cost or no-cost software in solving the many examples in the book. For example, the High Frequency Circuit Design book shows how to use the MATLAB Scripting in solving all the impedance matching examples in the book.This book introduces not only a solid understanding of the RF and microwave concepts and components but more importantly it shows how to use the software tools in the analysis and synthesis of these essential components in a design flow as practiced in industry. A brief organization of the book is as follows:In chapter 1, a thorough analysis of RF and microwave concepts and components are presented.In chapter 2, propagation of the plane waves in different media is introduced. Popular types of transmission lines such as coaxial, microstrip, stripline, and waveguides are defined and their parameters and performances are discussed. Microstrip bias feed and directional couplers are designed. In Chapter 3, derivation of RF and microwave network parameters, development and use of the network S parameters, and the movement of the lumped and distributed elements on the Smith chart are presented. In Chapter 4, the subject of resonant circuits and filters are thoroughly discussed and several resonators and filters are designed. In Chapter 5, the conditions for maximum power transfer and the equations for matching any two impedances are derived. Both analytical and graphical techniques are used to design narrowband and broadband impedance matching networks. In Chapter 6, analytic design equations for quarter-wave transformer and single-stub matching networks are derived. Narrowband and broadband distributed matching networks are designed. In Chapter 7, single-stage amplifiers are designed by utilizing two different impedance matching objectives. The first amplifier is designed for maxim gain where the input and the output are conjugately matched, the second amplifier is a low noise amplifier where the transistor is selectively mismatched to achieve a specific Noise Figure.
This authoritative new resource presents practical techniques for optimizing RF and microwave circuits for applications in radar systems design with an emphasis on current and emerging technologies. Professionals learn how to design RF components for radar systems and how to choose appropriate materials and packaging methods. This book explains how to integrate components while avoiding higher-level assembly issues and troubleshooting problems on the measurement bench. Theory and practical information are provided while addressing topics ranging from heat removal to digital circuit integration. This book is divided into three sections: the first section introduces the basics of microwave design, including transmission line theory and common materials used in RF circuits. The methods for creating accurate device models for both passive and active circuits are presented. The second part details the design of power amplifiers, low noise amplifiers, and passive elements. Both conventional and state-of-the-art design techniques are included with ample ‘tips and tricks.’ The last section concludes with a focus on component integration providing details on design methods for military operations, high manufacturing yield, and preventing measurement issues.
A unique, state-of-the-art guide to wireless integrated circuitdesign. With wireless technology rapidly exploding, there is a growing needfor circuit design information specific to wireless applications.Presenting a single-source guidebook to this dynamic area, industryexpert Ulrich Rohde and writer David Newkirk provide researchersand engineers with a complete set of modeling, design, andimplementation tools for tackling even the newest IC technologies.They emphasize practical design solutions for high-performancedevices and circuitry, incorporating ample examples of novel andclever circuits from high-profile companies. They also provideexcellent appendices containing working models and CAD-basedapplications. RF/Microwave Circuit Design for Wireless Applications offers: * Introduction to wireless systems and modulation types * A systematic approach that differentiates between designing forbattery-operated devices and base-station design * A comprehensive introduction to semiconductor technologies, frombipolar transistors to CMOS to GaAs MESFETs * Clear guidelines for obtaining the best performance in discreteand integrated amplifier design * Detailed analysis of available mixer circuits applicable to thewireless frequency range * In-depth explanations of oscillator circuits, including microwaveoscillators and ceramic-resonator-based oscillators * A thorough evaluation of all components of wireless synthesizers
The modern wireless communication systems require modulated signals with wide modulation bandwidth. This, in turns, requires signals with very high dynamic range and peak-to-average power ratio (PAPR). This means that the amplifier in the base-station has to work at a power back-off as large as the dynamic range of the signal, so that the amplifier has a high linearity in this region. For the standard single-stage amplifiers, this large power back-off reduces the efficiency dramatically. In this work, a three-way Doherty power amplifier (DPA) aiming at high power efficiency within a dynamic range of 9.5 dB, is designed and fabricated using partitioning design approach. The partitioning design approach decomposes a complex design task into small-sized, well-controllable, and verifiable subcircuits. This advanced straight forward method has shown very promising results. Using this design approach, a three-way DPA has been designed to demonstrate the advantages of this reliable design technique as well. Based on the design of a single-stage power amplifier and proposing a novel output power combiner, a 6 W three-way DPA has been designed which allows the mandatory load modulation principle in three-way DPA structures to be realized with simpler elements, whereas the design of a standard Doherty combiner would have been very challenging and not practical due to the extremely small value of its characteristic line impedance. The proposed combiner is calculated for a three-way DPA with 2-mm AlGaN/GaN-HEMTs. The simulation result shows a very good load modulation for the amplifier, which confirms the theoretical expectation for a three-way DPA. The efficiency of the designed 6 W three-way DPA at large back-off shows very promising values compared to recently reported amplifiers. The measured IMD3 products confirm the good linearity of the amplifier as well. Accordingly, the proposed power combiner and the design strategy are recommended to be used as the preferred option for designing three-way DPA structures with very high output power.

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