Abstract
A dual-resonance balanced voltage-controlled oscillator (VCO) is proposed to serves as a dual-band oscillator operated at 3.5 and 8.5 GHz. The VCO consists of two single-ended dual-resonance LC-tank complementary Colpitts oscillators configured in a balanced topology. The proposed VCO has been implemented with the TSMC 0.18 μm 1P6M CMOS technology and the core power consumption is 4.21 mW at the supply voltage of 1.2 V. The figure of merit is −190.22/−190.3 dBc/Hz at high/low band. The die area of the dual-band VCO is 0.995 × 0.55 mm2. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:194–197, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27234
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