DC-20 GHz GaAs MMIC variable attenuator

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Authors: Barov A. A., Kondratenko A. V., Hohol D. S.

Annotation: The results of design of GaAs pHEMT MMIC variable attenuator are presented. Operating frequency band is DC – 20 GHz, reference insertion loss is 2,2 dB at 20 GHz, attenuation band is 27 dB, input / output return loss is better than 15 dB. Control signal is analog voltage - 3 V...0 V.

Keywords: monolithic integrated circuit, variable attenuator, mesfet, frequency response