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A 60 GHz voltage-controlled oscillator with an inductive division LC tank has been designed in 90 nm CMOS. The analysis of the oscillator shows that the presence of higher harmonics, the capacitance nonlinearity and the very high K VCO are critical for the phase noise performance of oscillators. Therefore, a pseudo-differential amplifier is employed in this design because of its high linearity. Furthermore,...
This paper presents a low supply voltage, fundamental-frequency 90 nm CMOS mm-wave oscillator using an enhanced LC tank with inductive division to improve the oscillator performance. The oscillator achieves a tuning range from 53.2 GHz to 58.4 GHz while consuming 8.1 mW from a 0.7 V supply. The phase noise at 58.4 GHz is -90.08 dBc/Hz @ 1 MHz offset. The oscillator can also be operated from a supply...
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