A Low-Power K-Band CMOS VCO With Four-Coil Transformer Feedback

Autor: Kuan-Han Chen, Tsu Chang, Albert Chin, Szu-Ling Liu
Rok vydání: 2010
Předmět:
Zdroj: IEEE Microwave and Wireless Components Letters. 20:459-461
ISSN: 1558-1764
1531-1309
DOI: 10.1109/lmwc.2010.2049736
Popis: A K-band low-power and low-phase-noise voltage-controlled oscillator (VCO) is presented in this letter. By utilizing four-coil transformer feedback and forward body bias topology, good performances are obtained under a low-power supply with a 5.1% tuning range and a phase noise of -109.8 dBc/Hz at 1 MHz offset from the 21.37-GHz carrier frequency. The core circuit of this VCO only consumes 3.5 mW with a 0.6-V supply voltage and a 0.55-V body bias.
Databáze: OpenAIRE