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A wide tuning range millimeter-wave voltage-controlled oscillator (VCO) based on a magnetically coupled -type LC network in 65-nm CMOS is proposed. By configuring the switched negative-resistance unit, the VCO can oscillate at the even mode or the odd mode of the magnetically coupled -type LC network, thus the tuning range is widened without introducing the switch loss into the resonator...
This paper demonstrates a dual path LC voltage controlled oscillator (VCO) that achieves ~65% tuning range with optimized inductor switching design. Combination of discrete and continuous tuning method reduces the gain ratio between coarse tuning path and fine tuning path which alleviates the noise and coupling issues due to high coarse tuning gain. Optimized inductor switching topology enables wideband...
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