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This work presents complete analysis of both one- port and two-port dual-band oscillators using transformer-based fourth-order LC tanks, from which critical parameters including oscillation frequency, start-up condition, tank Q, phase noise—are thoroughly derived and compared. It is shown that one-port oscillators consume less power than two-port counterparts but may suffer from stability problem...
By exploiting the intrinsic multiple oscillation modes of a standing-wave oscillator, a dual-band millimeter-wave VCO is designed. Implemented in 0.13μm CMOS with an area of 0.05mm2, the VCO prototype measures a dual-band operation at 24 GHz and 60 GHz with tuning range of 10.8% and 7.2%, phase noise of -120dBc/Hz and -114dBc/Hz at 10MHz offset, power consumption of 11mW and 24mW, corresponding to...
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