A K-a-band VCO with low phase noise and wide tuning range using a 90-nm dual-gate device

作者：Chou Min Li; Chiu Hsien Chin^*; Huang Fan Hsiu

来源：Microwave and Optical Technology Letters, 2016, 58(3): 502-505.

DOI：10.1002/mop.29605

• dual-gate
• flicker noise
• cross-coupled
• voltage-controlled oscillator
• low phase noise
• wide tuning range

The design and characterization of a K-a-band 90-nm CMOS voltage-controlled oscillator (VCO) with low phase noise and a wide tuning range is presented in this latter. In this work, the flicker noise (1/f) performance of single- and dual-gate devices is measured and compared. By using the proposed dual-gate device, the VCO design can improve the oscillator phase-noise performance owing to its high output resistance. The measurement results also show a wide frequency tuning range of 3.1 GHz and a low phase noise of below -95 dBc/Hz at an offset frequency of 1 MHz, under a supply voltage of 1.2 V, and a current consumption of 11.0 mA. The proposed VCO exhibits a figure-of-merit of -180 dBc/Hz.

• 出版日期2016-3
• 单位长春大学