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Quasi‐constant‐sensitivity VCO with offset‐tuning PN junction varactor array
Author(s) -
Lee SungHuang,
Chiang YuehTa,
Chiou HwannKaeo
Publication year - 2006
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.21601
Subject(s) - varicap , voltage controlled oscillator , phase noise , dbc , offset (computer science) , figure of merit , electrical engineering , sensitivity (control systems) , microwave , optoelectronics , voltage , materials science , variable capacitor , capacitor , physics , engineering , electronic engineering , capacitance , telecommunications , computer science , electrode , quantum mechanics , programming language
A quasi‐constant‐sensitivity voltage‐controlled oscillator (VCO) using an offset‐tuning junction varactor array is demonstrated with low standard deviation of 4.5 MHz/V and average sensitivity of 41 MHz/V. The varactor array utilizing PN‐junction varactors provides high‐linear capacitor‐voltage response and low sensitivity variation. The VCO has a figure‐of‐merit (FOM) value, FOM Kvco , of 0.11 and phase noise of −120 dBc/Hz at 1‐MHz offset. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 1063–1066, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21601