Nonlinear Microwave Circuit Design

John Wiley & Sons Ltd.
402 pages; $125

While the field of nonlinear microwave circuits is still open to investigations, many basic concepts and design principles are already well established. This book presents the theory and practical design methodology for some of the most common nonlinear microwave circuits. It is composed of two main parts. In the first part, some fundamental tools are described. Chapter 1 is devoted to nonlinear analysis methods, including the time domain solution, Volterra and Fourier series as well as the conversion matrix. In Chapter 2, nonlinear measurements are covered: load/source pull, vector nonlinear network analyzer and pulse measurements. Nonlinear models are the subject of Chapter 3. They include basic equations, numerical and analytical models, equivalent circuit models, black-box models and simplified models. In the second part of the book, basic structure and design guidelines are described for some basic blocks in microwave systems. Power amplifiers are discussed in Chapter 4, including their classes of operation, a simplified class-A fundamental frequency design for high efficiency, and multi-harmonic design for high power and efficiency. The subject of oscillators is covered in Chapter 5. Linear stability and oscillation conditions, quasi-large-signal oscillation and stability, design methods, nonlinear analysis methods and noise are discussed. In Chapter 6, frequency multipliers and dividers are presented. Both passive and active multipliers are described. Piece-wise-linear and full-nonlinear models and analyses are used to derive the main features and behavior of the multipliers. The regenerative (passive) approach to frequency dividers is also covered. Mixer configurations, their design, nonlinear analysis and noise are described in Chapter 7. Chapter 8 addresses stability and injection-locked circuits. Local stability of nonlinear circuits in large-signal regime, nonlinear analysis, stability and bifurcations, and injection locking are explained. Several appendices will help the reader with the mathematical treatments used in the book.

To order this book, contact: John Wiley & Sons Ltd., The Atrium, Southern Gate, Chichester, West Sussex PO19 8SQ UK +44 1243 779777.

Practical Analog and Digital Filter Design

Artech House Inc.
278 pages; $99, £61
ISBN: 1-58053-915-7

This book is different from other filter design books in two important ways. First, the most common analog and digital filter design and implementation methods are covered. All important derivations and descriptions are provided to allow the reader to apply them directly to his or her own filter design problem. Over forty examples are provided to help illustrate the fundamentals. Second, the text is accompanied by WFilter, a fully functional, Windows®-based filter design package and the source code on which it is based. Chapter 1 introduces the reader to the filter design problem and an overview of WFilter is presented. Chapter 2 develops the normalized transfer functions for the Butterworth, Chebyshev, inverse Chebyshev and elliptic approximation cases. Chapter 3 describes the conversion of the normalized low pass filter to an unnormalized low pass, high pass, bandpass or bandstop filter. In Chapter 4, the implementation of analog filters is considered using popular techniques in active filter design with discussion of real-world considerations. Chapter 5 begins the discussion of discrete-time systems and digital filter design. Several key features of discrete-time systems are reviewed. In Chapter 6, digital IIR (recursive) filters are designed. Three methods of designing IIR filters are considered. Chapter 7 considers digital FIR (nonrecursive) filters using a variety of window methods and the Parks-McClellan optimization routine. The implementation of real-time and nonreal-time digital FIR and IIR filters is discussed in Chapter 8. Implementation issues, such as which type of digital filter to use, accuracy of quantized samples, fixed or floating point processing and finite register length computations are discussed. Chapter 9 completes the text with an introduction to the discrete Fourier transform and the more efficient fast Fourier transform (FFT). The reader will learn how to use the FFT in filtering applications and see the code necessary for this operation.

To order this book, contact: Artech House Inc., 685 Canton St., Norwood, MA 02062 (781) 769-9750 ext. 4030; or 46 Gillingham St., London SW1V 1HH UK +44 (0) 207-8750.