A novel technique for obtaining LO and RF (LSB) Rejection in 25-40 GHz microwave up conversion mixers based on the concepts of distributed and double balanced mixing

Mehdi, M. ; Rumelhard, C. ; Polleux, J.L. ; Lefebvre, B. (2005) A novel technique for obtaining LO and RF (LSB) Rejection in 25-40 GHz microwave up conversion mixers based on the concepts of distributed and double balanced mixing. In: Gallium Arsenide applications symposium. GAAS 2005, 3-7 ottobre 2005, Parigi.

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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 µm are used. A conversion gain of - 6 dB and a rejection over 6 dB on LO and RF (LSB) are obtained.

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