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Described are the design, fabrication and measured results of a pair of PHEMT power MMIC chip sets, one operating at 31GHz and the other operating at 35GHz. Each chip set contains a high gain 0.5W driver and a 1.5W power MMIC. The demonstrated high yield and low cost of these MMICs makes them attractive building blocks for today's millimeter-wave systems.
The Modular Avionics Radar system produced at Northrop Grumman ESSD is an important improvement in aircraft windsheur detection capability. The system features a solid state X-Band power transmitter whose fundamental building block is a 4W GaAs MMIC. 160W transmitter output power is achieved by integrating 88 MMICs in higher level assemblies. To meet MODAR production needs, over 28,000 of these MMICs...
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