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Double H‐shaped metamaterial resonator for low phase noise voltage controlled oscillator
Author(s) -
Lee Chongmin,
Seo Chulhun
Publication year - 2012
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.26694
Subject(s) - phase noise , voltage controlled oscillator , dbc , resonator , microwave , electrical engineering , metamaterial , optoelectronics , offset (computer science) , physics , vackář oscillator , materials science , resonance (particle physics) , voltage , engineering , telecommunications , computer science , atomic physics , programming language
In this article, we propose a voltage controlled oscillator (VCO) using a double H‐shaped metamaterial resonator (DHMR) based on a high Q value.The proposed DHMR exhibits a metamaterial characteristic which has a zero phase coefficient at the vicinity of resonance frequency. The proposed DHMR is designed to be a high Q by a strong coupling of the E‐field at the resonance frequency. These characteristics made phase noise performance in the synthesizer using the proposed VCO excellent. The proposed VCO with DHMR is designed to apply to an X‐Band frequency synthesizer of radar systems. The output power, the phase noise and the tuning range are 7.33 dBm, −121.3 dBc/Hz at 100 kHz offset carrier frequency and over 120 MHz, respectively. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1059–1063, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26694