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Center Independent Research & Development: JPL IRAD

Spatial Power Combining Amplifier for W-Band Radar for Earth and Planetary Science (SPCA)

Completed Technology Project

Project Introduction

We are designing and building a new type of millimeter-wave high power amplifier, that will enable Watt-class to tens-of-Watt-class transmitter sources at W-Band (75-110 GHz, including 94 GHz). Having compact high power W-band sources in the 2-30 Watt range could enable a new science and engineering instruments, for Cloud radar and Landing radar.

This work is developing a spatial-power-combining scheme using electromagnetic cavities and GaN MMIC chips, scaled up by a factor of 40 in frequency from prior art to make a highly compact, efficient W-Band power amplifier, in the 2-10 Watt power range. 

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