Quasi-optical power combining in a dielectric substrate

This paper presents a quasi-optical MESFET-based dielectric slab waveguide with an amplifier array. Up to 19 dB amplifier gain and 9.5 dB system gain is obtained at 7.38 GHz. Measurements of amplifier and system gain, |S/sub 21/|, output power vs. input power and transverse power distribution are presented.

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