한국통신학회논문지 (The Journal of Korean Institute of Communications and Information Sciences)
- 제19권10호
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- Pages.1982-1990
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- 1994
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- 1226-4717(pISSN)
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- 2287-3880(eISSN)
바이어스 동조를 이용한 위상 고정 유전체 공진 발진기에 관한 연구
A Study on the Phase-looked Dielectric Resonator Oscillator using Bias Tuning
초록
본 논문에서는 PLL(Phase Locked Loop)의 궤환 성질을 이용한 Ku-band (
We implemented a PLDRO(Phase Locked Dielectric Resonator Oscillator) using the concept of the feedback property of PLL(Phase Locked Loop) for Ku-band(10.95-11.70 GHz). The conventional approaches to a PLDRO design use varactor diode tuning method.. But in theis paper, the PLDRO has the advantage of the frequency sensitivity to changes in the supple voltage of the oscillating device without the frequency-variable part by varactor diode voltage-control. and uses a SPD(Sampling Phase Detector) for phase-comparision. The PLDRO is composed of the DRO phase-locked to the reference signal of UHF band by using a SPD for high frequency stability and can be available for European FSS(Fixed Satellite Service) at 10.00GHz. The PLDRO generates the output power of 8.67 dBm at 10.00 GHz and has a phase noise of -81 dBc/Hz at 10 kHz offset from carrier. The hamonic and spurious characteristics have -42.33 dBc and -65dBc respectively. This PLDRO has much better frequency stability, lower phase noise, and more economical effect for a satellite system than conventional DRO.
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