Abstract
Tremendous progress has been made in the development and insertion of monolithic microwave integrated circuit (MMIC) technology. MMIC technology was driven by military applications due to high performance, small size, light weight, and reliability requirements that could be met only through monolithic integration. More recently, high-volume, high-performance military applications of MMICs such as active aperture arrays, missiles, electronic warfare, expendables, and communication systems are maturing. MMICs have made good progress toward meeting the requirements for active array antennas, especially low cost. Active array antennas are being developed using T/R modules based on single-function chips, multifunction chips and integrated T/R module chips. Several systems are in pilot production or limited rate production. In the satellite communication area, GaAs MMICs offer important advantages such as small size, light weight, and higher reliability. The low cost of MMICs will make possible the development of active array antennabased communication systems. Such systems with multiple-beam transmissions and time division multiple access (TDMA) beam routing will open up a new era. A growing application for MMICs in portable phones is high efficiency, low cost, small size power amplifiers.
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