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A quasi-optical amplifier

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2 Author(s)
C. -Y. Chi ; Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA ; G. M. Rebeiz

A quasi-optical amplifier suitable for Gaussian-beam applications is presented. The amplifier is based on the integrated horn antenna and uses polarization duplexing to isolate the output beam from the input beam. A prototype hybrid amplifier is reported with a measured gain of 10.5 dB at 5.92 GHz. The amplifier design is uniplanar, is compact, and is compatible with the fabrication process of high-electron-mobility transistors (HEMTs) at millimeter-wave frequencies.<>

Published in:

IEEE Microwave and Guided Wave Letters  (Volume:3 ,  Issue: 6 )