This book presents background material as well as theoretical and experimental research results devoted to this rapidly growing field, also dealing with the design of communication systems with phased antenna arrays. Initially it develops a complete and comprehensive description of the principal fiber-optic and optoelectronic systems for microwave and millimeter wave signal transmission and processing, and also for the active phased array beam forming. The book reflects the state-of-the-art of a new and rapidly growing field, dealing with fiber-optic and optoelectronic technologies application for analog microwave and millimeter wave signal transmission, processing and beam forming in the active phased array antennas (APAA). It analyzes the principal problems which restrict wide applications of existing fiber links for microwave and millimeter signal transmission. These include restricted modulation bandwidth, insufficient phase stability and insertion losses. This book describes three principal methods of APAA optical control and multiple beam forming network configurations in detail: optical phase shifters, optical true time delay (TTD), and hybrid coherent optical processors.
It compares and analyzes configurations described in terms of main phased array antenna system characteristics: insertion losses, noise performance, dynamic range, sector and speed of squint-free steering, far field parameters, weight, mass, size and technological restrictions. The book considers the photonic processing (correlation, filtration, adaptive algorithms for phased arrays) of the microwave, and millimeter wave signals realized on the basis of fiber Bragg gratings.