A novel voltage controlled directional coupler using a wide FET structure

Cryan, M. ; Shepherd, P.R. ; Pennock, S.R. (1994) A novel voltage controlled directional coupler using a wide FET structure. In: Gallium Arsenide Applications Symposium. GAAS 1994, 28-30 April 1994, Turin, Italy.

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Abstract

A wide FET is considered as a voltage controlled directional coupler. A model for the device has been developed taking into account the distributed nature of the device. The six port measured and modelled S-parameters are shown to 20GHz. The results show large variation in coupling between source and drain.

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