What are MMIC's (Monolithic Microwave Integrated Circuits)?

The development of Monolithic Microwave Integrated Circuits (MMICs) is described. MMICs combine microwave integrated circuit technology with fabrication of active devices, such as Schottky barrier diodes and field effect transistors, by batch processing on and in the substrate; the substrate must be composed of materials such as GaAs, and silicon which produce good active devices. The use of MMICs for consumer electronics, communications equipment, and military applications is discussed. The designs of the MMICs and microwave miniature active circuit, which is the basis for the MMIC, are explained. Circuits prepared for military and commercial systems, such as a multioctave bandwidth amplifier for ECM and general purpose application and a X-band MMIC low noise amplifier and converter for DBS receiver, are described.