Millimeter-wave planar integrated circuits and subsystems

Millimeter-wave planar ICs based on microstrip line, suspended strip line and fin line design approaches are described, including the performance properties of the materials involved and numerical models for the functioning of the ICs. Techniques for designing mixers and tailored transition steps between each of the types of planar ICs are discussed, along with mixer configurations. A general theory of IC active sources is presented and illustrated for Gunn and IMPATT oscillators and amplifiers. Design guidelines for frequency multipliers are discussed, along with IC switches and phase shifters and other components, such as dc blocks and broadside couplers, couplers, filters and multiplexers, and circulators. Finally, IC subsystems, i.e., receivers, transceivers, and QPSK exciter/modulator subsystems are described, and future trends are projected.