A 25-40 GHz Up-Converter using the Concepts of Distributed and Double Balanced Mixing for LO and RF (LSB) Rejection

M. Mehdi, C. Rumelhard, J.L. Polleux, and B. Lefebvre (France)

Keywords

Mixer, Rejection, Upconverter, Distributed, Double Balanced, MMIC Design.

Abstract

In this paper a new configuration of up-converter is presented. In this circuit, the LO and RF (LSB) frequencies are rejected thanks to a distributed and balanced circuit. Eight GaAs PHEMTs with a gate-length of 0.25 ┬Ám are used. A conversion gain of -6 dB and a good rejection of LO and RF (LSB) are obtained.

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