Abstract
AbstractIn this article, a 24‐GHz VCO composed of a 12‐GHz VCO and an active frequency doubler is presented. This work is implemented by using the 0.18‐μm 1P6M CMOS process. The VCO and active frequency doubler with a 1.5 V supply consume 30 mA. The phase noise of measurement is −107.5 dBc/Hz and −123.1 dBc/Hz at 1‐MHz and 10‐MHz offset, respectively. A tuning range of 2.3 GHz is achieved by using varactor. The measurement shows a good efficiency of translation of frequency doubler and the oscillator has a good figure of merit (FOM) of −180 dBc/Hz. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 940–942, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24238
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