Theses and Dissertations - UTB/UTPA
Date of Award
Master of Science (MS)
Dr. Heinrich D. Foltz
Dr. Hasina F. Huq
Dr. Edward J. Banatoski
This thesis will discuss subthreshold FET mixers with a focus on conversion loss derivations. To begin understanding the mixers, a look into the FET model is first taken in Chapter II. Then in Chapter III, a single FET device mixer is studied and its conversion loss is found from its small-signal model. The chapter will then include a two FET device mixer and a four device FET mixer. Finally a new type of mixer will be discussed in Chapter IV. The new type of mixer is a 3 phase mixer with the phase angles being 0°, 120°, and 240°. The theoretical conversion loss is found by treating the FETs as simple switches and a square wave as the RF signal. The resulting conversion loss is shown to be better than the previous mixers mentioned. The thesis will conclude with a discussion of future areas of work for the mixer.
University of Texas-Pan American
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