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CMOS RF switched capacitor bandpass filter tuned by ring VCO

Abstract : A new RF switched capacitor bandpass filter and its command circuit made up of a ring voltage controlled oscillator with 'XOR' gates are proposed. Implemented in a standard 0.35 m CMOS technology, this circuit is intended to be used in a subset of professional mobile phone applications [380-520 MHz]. Experiments carried out on a prototype show a tunable center frequency range of 260MHz [240-500 MHz], with a quality factor that can be as high as 300.
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Contributor : Ahmed El Oualkadi Connect in order to contact the contributor
Submitted on : Monday, February 17, 2014 - 1:08:47 PM
Last modification on : Wednesday, October 20, 2021 - 3:22:09 AM
Long-term archiving on: : Saturday, May 17, 2014 - 11:10:59 AM


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Ahmed El Oualkadi, Jean-Marie Paillot, Hervé Guegnaud, Rachid Allam. CMOS RF switched capacitor bandpass filter tuned by ring VCO. International Journal of Electronics and Communications, Elsevier, 2005, 59, pp.352 - 358. ⟨10.1016/j.aeue.2004.11.008⟩. ⟨hal-00947402⟩



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