Abstract:This paper proposes a varactor-based circuit technique intended for amplitude and phase control, with improved linearity in the presence of parasitic capacitances and parasitic inductances. The mechanism causing linearity degradation in an anti-series varactor network that includes significant parasitic elementsa key aspect that, to our knowledge, has never been reportedis first studied using an analytical approach based on multi-tone excitation. It is demonstrated that simply optimizing the ratio of diode siz… Show more
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