Topics in Millimeter Wave Technology


Book Description

Topics in Millimeter Wave Technology, Volume 1 presents topics related to millimeter wave technology, including fin-lines and passive components realized in fin-lines, suspended striplines, suspended substrate microstrips, and modal power exchange in multimode fibers. A miniaturized monopulse assembly constructed in planar waveguide with multimode scalar horn feeds is also described. This volume is comprised of five chapters; the first of which deals with the analysis and synthesis techniques for fin-lines as well as the various passive components realized in fin-line. Tapers, discontinuities, directional couplers, filters, and non-reciprocal devices are considered, along with attenuators, switches, detectors, phase modulators, mixers, and oscillators. The second chapter focuses on millimeter-wave planar integrated circuit filters, with particular reference to lowpass filter design that forms the basis for the bandpass filter design. The third chapter describes H-plane millimeter-wave planar transmission lines and circuits, along with various passive and active components realized using suspended substrate microstrips. The fourth chapter examines modal power dynamics and transmission characteristics of multimode optical fibers. The relation between a ray theory and a wave theory is also explained, and a theory of mode coupling and the modal power exchange is discussed. The book concludes with a chapter on planar waveguide versions of the classic dual-plane, amplitude-monopulse comparator realized in conjunction with a unique multimode scalar feed horn. This book will be of interest to students and practitioners of electronics and electrical engineering.




Microwave Active Circuit Analysis and Design


Book Description

This book teaches the skills and knowledge required by today's RF and microwave engineer in a concise, structured and systematic way. Reflecting modern developments in the field, this book focuses on active circuit design covering the latest devices and design techniques. From electromagnetic and transmission line theory and S-parameters through to amplifier and oscillator design, techniques for low noise and broadband design; This book focuses on analysis and design including up to date material on MMIC design techniques. With this book you will: - Learn the basics of RF and microwave circuit analysis and design, with an emphasis on active circuits, and become familiar with the operating principles of the most common active system building blocks such as amplifiers, oscillators and mixers - Be able to design transistor-based amplifiers, oscillators and mixers by means of basic design methodologies - Be able to apply established graphical design tools, such as the Smith chart and feedback mappings, to the design RF and microwave active circuits - Acquire a set of basic design skills and useful tools that can be employed without recourse to complex computer aided design - Structured in the form of modular chapters, each covering a specific topic in a concise form suitable for delivery in a single lecture - Emphasis on clear explanation and a step-by-step approach that aims to help students to easily grasp complex concepts - Contains tutorial questions and problems allowing readers to test their knowledge - An accompanying website containing supporting material in the form of slides and software (MATLAB) listings - Unique material on negative resistance oscillator design, noise analysis and three-port design techniques - Covers the latest developments in microwave active circuit design with new approaches that are not covered elsewhere




Coplanar Microwave Integrated Circuits


Book Description

The tools and techniques to fully leverage coplanar technology Coplanar Microwave Integrated Circuits sets forth the theoretical underpinnings of coplanar waveguides and thoroughly examines the various coplanar components such as discontinuities, lumped elements, resonators, couplers, and filters, which are essential for microwave integrated circuit design. Based on the results of his own research findings, the author effectively demonstrates the many advantages of coplanar waveguide technology for modern circuit design. Following a brief introductory chapter, the text thoroughly covers the material needed for successful design and realization of coplanar microwave circuits, including: * Fundamental transmission properties of coplanar waveguides using a full wave analysis * Detailed analysis of most discontinuities used in coplanar waveguide design * Lumped elements in coplanar technology that are needed in circuit design * Development of software for coplanar circuit design, including a CD-ROM containing a test version of the software for modeling coplanar circuit components and circuits * Application of derived results to build more complex components such as lumped element filters, waveguide filters, millimeter wave filters, end-coupled waveguide structures, waveguide couplers, and Wilkinson couplers for different frequency ranges in coplanar technology The final chapter focuses on special coplanar microwave integrated circuits that have been developed using the software presented in the text. The book concludes with a thought-provoking discussion of the advantages and disadvantages of the coplanar technique. Extensive use of figures and tables helps readers easily digest and visualize complex concepts. A bibliography is included at the end of each chapter for further study and research. Coplanar Microwave Integrated Circuits is recommended for graduate students and engineers in RF microwaves who want to reap all the advantages and possibilities of coplanar technology.




Nonlinear Microwave and RF Circuits


Book Description

This newly and thoroughly revised edition of the 1988 Artech House classic offers you a comprehensive, up-to-date treatment of nonlinear microwave and RF circuits. It gives you a current, in-depth understanding of the theory of nonlinear circuit analysis with a focus on Volterra-series and harmonic-balance methods. You get practical guidance in designing nonlinear circuits and modeling solid-state devices for nonlinear circuit analysis by computer. Moreover, you learn how characteristics of such models affect the analysis of these circuits. Critical new topics include microwave heterojunction bipolar transistors (HBTs), heterojunction FETs (HEMTs), silicon MOSFETs, modern IC design approaches, new methods of harmonic-balance analysis, multitone analysis methods, Fourier methods for multitone problems, and artificial frequency mapping. What's more, the second edition has been updated to include discussions on nonlinear analysis of oscillators and design issues relating to RF and wireless technology. More than 120 illustrations support key topics throughout the book.










Ridge Waveguides and Passive Microwave Components


Book Description

This book collects much of Helszajn's work (formerly, Heriot-Watt University) and includes closed-form and finite element calculations of the propagation constant, attenuation and mode spectrum for the ridge waveguide, and power-current and power-voltage definitions of impedance. Circular polarization is also treated. Propagation properties where the waveguide has a dielectric filler are calculated. The treatment is then extended to more complex designs, including quadruple ridge waveguides with and without a gyromagnetic filler. The text includes descriptions of many of the passive devices which can be realized using these waveguides, including isolators, phase shifters, and circulators. c. Book News Inc.




Design, Simulation and Applications of Inductors and Transformers for Si RF ICs


Book Description

The modern wireless communication industry has put great demands on circuit designers for smaller, cheaper transceivers in the gigahertz frequency range. One tool which has assisted designers in satisfying these requirements is the use of on-chip inductiveelements (inductors and transformers) in silicon (Si) radio-frequency (RF) integrated circuits (ICs). These elements allow greatly improved levels of performance in Si monolithic low-noise amplifiers, power amplifiers, up-conversion and down-conversion mixers and local oscillators. Inductors can be used to improve the intermodulation distortion performance and noise figure of small-signal amplifiers and mixers. In addition, the gain of amplifier stages can be enhanced and the realization of low-cost on-chip local oscillators with good phase noise characteristics is made feasible. In order to reap these benefits, it is essential that the IC designer be able to predict and optimize the characteristics of on-chip inductiveelements. Accurate knowledge of inductance values, quality factor (Q) and the influence of ad- cent elements (on-chip proximity effects) and substrate losses is essential. In this book the analysis, modeling and application of on-chip inductive elements is considered. Using analyses based on Maxwells equations, an accurate and efficient technique is developed to model these elements over a wide frequency range. Energy loss to the conductive substrate is modeled through several mechanisms, including electrically induced displacement and conductive c- rents and by magnetically induced eddy currents. These techniques have been compiled in a user-friendly software tool ASITIC (Analysis and Simulation of Inductors and Transformers for Integrated Circuits).




Switchmode RF and Microwave Power Amplifiers


Book Description

Switchmode RF and Microwave Power Amplifiers, Third Edition is an essential reference book on developing RF and microwave switchmode power amplifiers. The book combines theoretical discussions with practical examples, allowing readers to design high-efficiency RF and microwave power amplifiers on different types of bipolar and field-effect transistors, design any type of high-efficiency switchmode power amplifiers operating in Class D or E at lower frequencies and in Class E or F and their subclasses at microwave frequencies with specified output power, also providing techniques on how to design multiband and broadband Doherty amplifiers using different bandwidth extension techniques and implementation technologies. This book provides the necessary information to understand the theory and practical implementation of load-network design techniques based on lumped and transmission-line elements. It brings a unique focus on switchmode RF and microwave power amplifiers that are widely used in cellular/wireless, satellite and radar communication systems which offer major power consumption savings. - Provides a complete history of high-efficiency Class E and Class F techniques - Presents a new chapter on Class E with shunt capacitance and shunt filter to simplify the design of high-efficiency power amplifier with broader frequency bandwidths - Covers different Doherty architectures, including integrated and monolithic implementations, which are and will be, used in modern communication systems to save power consumption and to reduce size and costs - Includes extended coverage of multiband and broadband Doherty amplifiers with different frequency ranges and output powers using different bandwidth extension techniques - Balances theory with practical implementation, avoiding a cookbook approach and enabling engineers to develop better designs, including hybrid, integrated and monolithic implementations




Planar Circuits for Microwaves and Lightwaves


Book Description

Until recently, three principal classes had been known in the electrical cir cuitry. They were as follows: 1) The lumped-constant circuit, which should be called a zero-dimensional circuit, in the sense that the circuit elements are much smaller in size as compared with the wavelength in all three spatial directions. 2) The distributed-constant circuit, which should be called a one-dimensional circuit, in the sense that the circuit elements are much smaller than the wavelength in two directions but comparable to the wavelength in one di rection. 3) The waveguide circuit, which should be called a three-dimensional circuit, in the sense that the circuit elements are comparable to the wavelength in all three directions. The principal subject of this book is the analysis and design (synthesis) theories for another circuit class which appeared in the late 1960s and became common in the 1970s. This new circuit class is 4) the planar circuit, which should be called a two-dimensional circuit, in the sense that the circuit elements are much smaller in size as compared with the wavelength in one direction, but comparable to the wavelength in the other two directions.