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A linear, low‐power, wideband CMOS VCO for FM‐UWB applications
Author(s) -
Georgiadis Apostolos,
Detratti Marco
Publication year - 2008
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.23547
Subject(s) - voltage controlled oscillator , cmos , wideband , electrical engineering , frequency divider , electronic engineering , microwave , phase locked loop , power (physics) , engineering , phase noise , telecommunications , voltage , physics , quantum mechanics
A linear, low‐power, wideband 0.18‐μm CMOS VCO for UWB applications is presented, as part of a PLL‐based direct FM modulator for the 3.1–5‐GHz UWB band. It consists of a frequency control circuit and a differential ring core, coupled to the antenna output and the PLL prescaler by two single‐ended inverter buffers. The measured VCO exhibits a linear tuning range of 0.5–5.0 GHz, low power consumption of 2.5–10.5 mW, and an output power of −10 ± 1 dBm. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 1955–1958, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23547