What is GaAs MMICs?
The monolithic microwave integrated circuit (MMIC) uses an insulating crystalline material as both the dielectric and the active layer material. For many new applications, GaAs has become the material of choice because of its ability to perform at high frequencies. It also has a high-resistivity semi-insulating property that reduces cross talk between devices. This permits the integration of active (radiofrequency) devices, control (logic) devices, transmission lines, and passive elements on a single substrate. GaAs MMICs offer the following advantages: • Size and weight reduction. • Cost reduction for medium- to large-scale production volumes. • Enhanced system performance from the inclusion of several functions (e.g., RF and logic) on a single circuit. • Enhanced reproducibility from uniform processing and integration of all parts of the circuit. • Enhanced reliability from integration and process-control improvements. • Wider frequency-bandwidth performance from the reduction of par
