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Low-Phase Noise Hartley Differential CMOS Voltage Controlled Oscillator

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4 Author(s)
Shao-Hua Lee ; Dept. of Electron. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei ; Yun-Hsueh Chuang ; Sheng-Lyang Jang ; Chien-Cheng Chen

This letter presents a novel Hartley low phase noise differential CMOS voltage-controlled oscillator (VCO). The low noise CMOS VCO has been implemented with the TSMC 0.18-mum 1P6M CMOS technology and adopts full PMOS to achieve a better phase noise performance. The VCO operates from 4.02 to 4.5GHz with 11.3% tuning range. The measured phase noise at 1-MHz offset is about -119dBc/Hz at 4.02GHz and 122dBc/Hz at 4.5GHz. The power consumption of the VCO core is 6.75mW

Published in:

Microwave and Wireless Components Letters, IEEE  (Volume:17 ,  Issue: 2 )