Inhaltsangabe
65235-4 Optimize antenna performance with this practical guide for all wireless professionals! Whether you're a technician, engineer or manager, this practical guide will help you install, maintain, and optimize wireless antennas-without advanced theory and mathematics. It's the book you'll depend on to solve your thorniest wireless antenna problems. Practical Communication Antennas with Wireless Applications begins by introducing the broad topics of antennas, communication, transmission lines, and radiation. It then introduces all the basic mathematics you need to work with antennas, including complex numbers and phasors. You'll understand and model all three passive elements in an antenna circuit: resistors, capacitors, and inductors. Then, you'll walk through each critical element of antenna performance, including: * Antenna impedance parameters such as characteristic impedance, reflection and transmission coefficients, standing wave ratio, and frequency response * Bandwidth and transformer-related issues such as resonant circuits, selectivity, and antenna Q * Radiation resistance, electrical wavelengths, antenna patterns, polarization, wave propagation, and more The book includes detailed coverage of using Smith charts to analyze and design antenna systems. It compares several state-of-the-art cellular radio antennas, demonstrating how they implement antenna concepts in practice. It's also the only antenna guide with detailed coverage of signal processing and its implications for signal delivery. Practical Communication Antennas with Wireless Applications is up-to-date, complete, and above all, practical. No matter which antenna references you may own, this is the one you'll use.
Reseña del editor
-- The perfect practitioner's guide: bridges the gap between theoretical overviews and math-heavy handbooks.-- Delivers a thorough understanding of antennas, from impedance to wave propagation -- even introduces signal processing issues.-- Numerous applications and illustrations -- with a minimum dependence on integral and differential calculus.This book helps technicians and other professionals implement and manage wireless antennas successfully -- without requiring a highly sophisticated understanding of advanced theory and mathematics.The book begins by introducing the broad topics of antennas, communication, transmission lines and radiation. It then introduces the basic mathematical concepts needed to work with antennas, including complex numbers, phasors and impedance. The antenna is treated as a circuit element; impedance, standing wave ratios, filters, and bandwidth issues are covered. Additional topics include: electrical wavelengths as related to short and long antennas; radiation resistance; antenna patterns; polarization; wave propagation, and antenna tuning. The book covers recent examples of wireless antennas, and concludes with an overview of advanced signal processing issues.
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