A LOW POWER PUSH-PUSH VCO USING MULTI-COUPLED LC TANKS

作者：Nagarajan Mahalingam^*; Ma Kaixue; Yeo Kiat Seng; Lim Wei Meng

来源：Journal of Circuits, Systems, and Computers, 2013, 22(10): 1340035.

DOI：10.1142/S0218126613400355

• 12 GHz
• 24 GHz
• frequency tuning range (FTR)
• low phase noise
• low power
• push-push
• SiGe
• VCO
• WPAN

A fully integrated push- push voltage controlled oscillator (VCO) working in K- band with a large tuning range and a low phase noise fabricated in a 0.18 mu m SiGe BiCMOS technology is presented. Multi- coupled LC tanks are used to improve the tuning range, power consumption and phase noise. Digital tuning varactors are used to maintain a low VCO tuning sensitivity (K-VCO) and maximum frequency overlap. The VCO achieves a frequency tuning range (FTR) of 17% at 12 GHz, a phase noise of -106.62 dBc/Hz at 1MHz o r set and consumes 7mW from 1.8V supply.

• 出版日期2013-12
• 单位南阳理工学院