A 15 GHz,-182 dBc/Hz/mW FOM, Rotary Traveling Wave VCO in 90 nm CMOS

作者：Zhang, Changchun^*; Wang, Zhigong; Zhao, Yan; Park, Sung Min

来源：IEEE Microwave and Wireless Components Letters, 2012, 22(4): 206-208.

DOI：10.1109/LMWC.2012.2189100

• CMOS
• phase noise
• rotary traveling wave (RTW)
• shielded coplanar stripline
• voltage-controlled oscillator (VCO)

This letter presents a phase-noise-centric design methodology of a rotary traveling wave voltage controlled oscillator (RTW VCO). Based upon this methodology, a 15 GHz multiphase RTW VCO is realized in a standard 90 nm CMOS process. Particularly, shielded coplanar striplines are exploited to provide better shielding protection and higher characteristic impedance (Z(o)) with comparable Q-factor than conventional coupled transmission lines. Measured results of the proposed RTW VCO demonstrates the frequency tuning range of 2 GHz, the output power level of -11.3 dBm, the phase noise of -109.6 dBc/Hz at 1 MHz offset, the clock RMS jitter of 2 ps(RMS), and the power dissipation of 12 mW from a single 1.2-V supply. The chip core occupies the area of 0.2 mm(2).

• 出版日期2012-4
• 单位东南大学