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A 2 GHz, 0.25 µm MOS Complementary VCO with Differentially Tuned MOS Varactors for Wireless Applications

This article describes a 2 GHz CMOS complementary voltage-controlled oscillator (VCO) with differentially tuned MOS varactors for ISM-band wireless communications applications. The VCO is fabricated using a 0.25 µm mixed-signal/RF CMOS process. This VCO, utilizing differentially tuned MOS varactors, can reduce the adverse effect of high varactor sensitivity by...
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