Karl F. Warnick

The definitive antenna reference—thoroughly revised and expanded to cover the latest technologies! This fully updated handbook lays out complex antenna fundamentals in simple terms for ham and short wave radio hobbyists and electronics technicians. The book begins with quick explanations of present day antenna theories and practices before providing start-to-finish instruction on the fabrication and installation of real antennas. You will explore every type of antenna system—from VHF/UHF to mobile/wireless and everything in between. Practical Antenna Handbook, Sixth Edition bridges the gap between the highly theoretical mathematics of antenna engineers and the “hands-on” focus of radio amateurs and experimenters. The book covers key areas such as multiple antenna families, inexpensive or free software modeling tools, and antenna testing using low-cost techniques. You will get coverage of new antenna types for low-frequency applications only now being opened to radio amateurs. Contains everything hobbyists and technicians need to know about antennasBlends theoretical concepts with hands-on experience—requires only high school mathWritten by an electrical engineer and amateur radio enthusiast

The revised and updated second edition of this textbook teaches students to create modeling codes used to analyze, design, and optimize structures and systems used in wireless communications, microwave circuits, and other applications of electromagnetic fields and waves. Worked code examples are provided for key algorithms using the MATLAB technical computing language. The book begins by introducing the field of numerical analysis and providing an overview of the fundamentals of electromagnetic field theory. Further chapters cover basic numerical tasks, finite difference methods, numerical integration, integral equations and the method of moments, solving linear systems, the finite element method, optimization methods, and inverse problems. Developing and using numerical methods helps students to learn the theory of wave propagation in a concrete, visual, and hands-on way. This book fills the missing space of current textbooks that either lack depth on key topics or treat the topic at a level that is too advanced for undergraduates or first-year graduate students. Presenting the topic with clear explanations, relevant examples, and problem sets that move from simple algorithms to complex codes with real-world capabilities, this book helps its readers develop the skills required for taking a mathematical prescription for a numerical method and translating it into a working, validated software code, providing a valuable resource for understanding the finite difference method, the method of moments, the finite element method, and other tools used in the RF and wireless industry.

Discover a modern approach to the analysis, modeling and design of high sensitivity phased arrays. Network theory, numerical methods and computational electromagnetic simulation techniques are uniquely combined to enable full system analysis and design optimization. Beamforming and array signal processing theory are integrated into the treatment from the start. Digital signal processing methods such as polyphase filtering and RFI mitigation are described, along with technologies for real-time hardware implementation. Key concepts from interferometric imaging used in radio telescopes are also considered. A basic development of theory and modeling techniques is accompanied by problem sets that guide readers in developing modeling codes that retain the simplicity of the classical array factor method while incorporating mutual coupling effects and interactions between elements. Combining current research trends with pedagogical material suitable for a first-year graduate course, this is an invaluable resource for students, teachers, researchers, and practicing RF/microwave and antenna design engineers.