A complementary cross-coupled quadrature VCO using ring-inductor coupling method

作者：Jang Sheng Lyang^*; Lin San Sheng; Chang Chia Wei; Hsu Shih Hsiang

来源：Microwave and Optical Technology Letters, 2012, 54(4): 839-842.

DOI：10.1002/mop.26714

• cross-coupled quadrature voltage-controlled oscillators
• 90-nm CMOS
• ring inductor

A high-performance quadrature voltage-controlled oscillator (QVCO) with ring inductor is studied. The QVCO uses a closed-loop ring inductor and is composed of two complementary negative transconductance cells to replenish the energy loss due to the resistive LC resonator and is implemented in a standard TSMC 90 nm 1P9M CMOS technology. This QVCO operates between 7.05 and 8.15 GHz. The measured phase noise of the VCO operating at 8.15 GHz is -119.98 dBc/Hz at 1-MHz offset while the QVCO draws 4.2 mA and 3.57 mW consumption from a supply voltage of 0.85 V.

• 出版日期2012-4