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Design and evaluation of a −117 dBc/Hz phase noise voltage‐controlled oscillator using on‐chip CPW resonator for 5 GHz‐band WLAN
Author(s) -
Pokharel Ramesh K.,
Kanaya Haruichi,
Yoshida Keiji
Publication year - 2010
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.24993
Subject(s) - phase noise , dbc , voltage controlled oscillator , electrical engineering , resonator , microwave , optoelectronics , coplanar waveguide , inductor , capacitor , chip , materials science , cmos , voltage , engineering , telecommunications
Abstract A 5 GHz‐band voltage‐controlled oscillator employing on‐chip coplanar‐waveguide resonator instead of inductor–capacitor–resonator is proposed, designed, and fabricated in 0.18 μm CMOS technology.The advantages of the proposed VCO are the wider frequency‐tuning range; smaller chip area and phase noise is to be −117 dBc/Hz (@1 MHz offset frequency), which is comparable to that of a conventional LC–VCO. © 2010 American Association of Anatomists Microwave Opt Technol Lett 52: 763–766, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24993