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http://dx.doi.org/10.17661/jkiiect.2016.9.4.359

Design and Implementation of Oscillator for X-band with Coupled C type Resonator  

Kim, Jong-hwa (Dept. of Electronics Engineering, Silla University)
Kim, Gi-rae (Dept. of Electronics Engineering, Silla University)
Publication Information
The Journal of Korea Institute of Information, Electronics, and Communication Technology / v.9, no.4, 2016 , pp. 359-365 More about this Journal
Abstract
In this paper, a novel coupled C type resonator is proposed for improvement of phase noise characteristics that is weak point of oscillator using planar type microstrip line resonator. Oscillator using proposed coupled C type resonator is designed, it has improved phase noise characteristics. At the fundamental frequency of 9.8GHz, 2.4dBm output power and -82.7 dBc@100kHz phase noise have been measured for oscillator with coupled C type resonator. The phase noise characteristics of oscillator is improved about 9.7dB compared to one using the general ${\lambda}/4$ microstrip resonator. Due to its simple fabrication process and planar type, it is expected that the technique in this paper can be widely used for low phase noise oscillators for both MIC and MMIC applications.
Keywords
MMIC; Oscillator; Phase Noise; Resonator; X-Band;
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