A 1-mW K-band gate AC-coupled VCO with 0.25 V supply voltage

作者：Jin, C. L.; Yu, X. P.^*; Feng, C.; Lim, W. M.; Lu, Z. H.; Yeo, K. S.

来源：Analog Integrated Circuits and Signal Processing, 2013, 77(1): 87-91.

DOI：10.1007/s10470-013-0123-x

A K-band low-voltage voltage controlled oscillator (VCO) implemented in standard 65-nm bulk CMOS process is proposed. By using the proposed gate AC-coupling technique and biasing the cross-coupled transistors in moderate inversion region, the oscillator core operates under ultra low supply voltage with acceptable current efficiency. Reverse short-channel effect is also employed to reduce the threshold voltage of the cross-coupled transistors. Operating from 23.1 to 24.8 GHz, the fabricated VCO is able to work under supply voltage as low as 0.25 V with a core power consumption of 1 mW.

• 出版日期2013-10
• 单位浙江大学