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Research on Low Phase Noise Oscillator Using Microstrip Square Open Loop Resonator  

Park Eun-Young (School of Electronic Engineering, Soongsil University)
Seo Chulhun (School of Electronic Engineering, Soongsil University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.17, no.1, 2006 , pp. 17-23 More about this Journal
Abstract
This paper has presented a low phase noise oscillator using a square open loop with microstrip structure. A square open loop resonator has a large coupling coefficient value, which makes a high Q value, and has reduced phase noise. This oscillator has presented the oscillation frequency of 5.84 GHz, harmonics of -15.83 dBc and the phase noise of -111.17 dBc/Hz at the offset frequency of 100 kHz. In conclusion, the proposal structure has improved phase noise of 15 dB at the offset frequency of 100 kHz compared with the conventional structure of oscillator.
Keywords
Square Open Loop; Phase Noise; Oscillator; Resonator;
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