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http://dx.doi.org/10.13067/JKIECS.2014.9.1.17

A Design of K-Band Low Phase noise Oscillator by Direct Coupling of K-band Dielectric Resonator  

Lim, Eun-Jae (경남대학교 정보통신공학과)
Han, Geon-Hee ((주)에이트론)
Rhee, Young-Chul (경남대학교 정보통신공학과)
Publication Information
The Journal of the Korea institute of electronic communication sciences / v.9, no.1, 2014 , pp. 17-24 More about this Journal
Abstract
In this paper, we analysed coupling coefficient between dielectric resonator of high dielectric constant and microstrip line to design for low phase noise dielectric resonator by direct coupling. Also we analysed phase noise of dielectric resonance oscillator with parallel feedback circuit to complement Q by high dielectric constant. We obtained a result from high-stability dielectric oscillator which is optimum designed through analysis of dielectric resonance oscillator phase noise and coupling coefficient. The result is that the phase noise was -83.3dBc/Hz@1KHz at 20.25GHz when we used about 3.6 coupling coefficient and ${\epsilon}_r$=30 dielectric resonator of 20.25GHz dielectric resonance oscillator. As a result, we suggested the direct-connect design method by frequency multiplication mode to prevent phase noise loss at K-Band.
Keywords
DRO; Phase noise; Dielectric; Coupling Coefficient;
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