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A Study on Phase noise Reduction Technique in Oscillator Using PBG  

Oh Icsu (School of Electronic Engineering, Soongsil University)
Seo Chulhun (School of Electronic Engineering, Soongsil University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.42, no.1, 2005 , pp. 99-103 More about this Journal
Abstract
In this paper, a new technique to reduce the phase noise in microwave oscillators is proposed using the resonant characteristics of the Photonic Bandgap(PBG). We applied PBG structure to ground of the microstrip line resonator with the low Q(Quality factor). Therefore, we improved about 10 dBc in contrast to phase noise characteristic of the conventional microstrip line oscillator at 2.4 GHz ＠ 100 MHz offset. Output power is 7.09 dBm.
Keywords
PBG; Oscillator; Phase Noise;
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