Millimeter wave devices and networks based on dielectric, ferrite and semiconductor waveguides

Dielectric waveguides rectangular cross section made of dielectrics, ferrites, and semiconductors are experimentally studied at frequencies 30-120 GHz. Devices (passive and active) based on these waveguides (attenuators, phase shifters, switches, dividers, couplers and etc.), also some systems using elaborated devices have been created. The advantages of the reported waveguides as follows: broad band, simple construction, low loss and price cost. As a result of these advantages dielectric waveguides with electrically and optically controlled ferrite and semiconductor insertions are of interest for millimeter wave radars, communication, image and introscopy systems