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Published June 1996 | public
Book Section - Chapter

A 44-60 GHz Monolithic pHEMT Grid Amplifier


We present a 36-element monolithic millimeter-wave grid amplifier. The grid operates in the U-band, using pseudomorphic High Electron Mobility Transistors (pHEMTs) as the active devices. The grid has a peak gain of 6.5 dB at 44 GHz. The grid can be tuned to operate from 44 GHz to 60 GHz by changing the positions of external polarizers and tuning slabs. At 60 GHz, the grid has a peak gain of 2.5 dB. Gain and tuning curves are consistent with theoretical predictions.

Additional Information

© 1996 IEEE. Date of Current Version: 06 August 2002. This research was supported by the Army Research Office and the Lockheed Martin corporation. M.P. De Lisio held an AASERT fellowship. The authors gratefully acknowledge Norm Byer of Lockheed Martin and Erich Schlecht of the Army Research Laboratory for their support and helpful suggestions.

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