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Implementation of Voltage Control Dielectric Resonator Oscillator for FMCW Radar  

안용복 (목포해양대학교 해양전자·통신공학과 대학원)
박창현 (목포해양대학교 해양전자·통신공학과 대학)
김장구 (목포해양대학교 해양전자·통신공학과 대학)
최병하 (목포해양대학교 해양전자·통신공학과)
Abstract
In this paper, a VCDRO(Voltage Control Dielectric Resonator Oscillator) applied to FMCW(Frequency Modulated Continuous Wave)Radar as stable source is implemented and constructed with a MESFET(Metal-semiconductor Field-Effect Transistor) for low noise, a dielectric resonate. of high frequency selectivity, and high Q varator diode to obtain a good phase noise performance and stable sweep characteristics. The designed circuits is simulated thrash harmonic balance simulation technique to provide the optimum performance. The measured result of a fabricated VCDRO shows that output is 2.22㏈m at 12.05GHz, harmonic suppression -30㏈c, phase noise -130㏈c at 100KHz offset, and sweep range of varator diode $\pm$18.7MHz, respectively. This oscillator will be available to FMCW Radar.
Keywords
FMCW; VCDRO; PHASE NOISE;
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