<title>10-GHz 1:2 switch MMIC for the communication and radar applications</title>

Abstract

Advances in microwave electronics result in development of more and more sophisticated devices. For all complicated microwave systems it is necessary to have the switch of the signals. It refers to the transceivers, the multi-channel systems, the control systems and many other civil and military applications. In this artick the development of the 10 GHz 1 :2 switch for use in the communication and radar systems is reported.Switch is designed for realization as MMIC on GaAs heterostructure substrates. It incorporates a hybrid design with directional couplers. As variable impedance elements, the field effect transistors, connected to the directional coupler arms in parallel to the channel, are used. Tuning and optimization of the circuit was performed using Microwave Office software by Applied Wave Research, Inc.