Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)
- 1999.11a
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- Pages.697-700
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- 1999
A Study on a hybrid Voltage Controlled Oscillator for Personal Communication System
PCS용 하이브리드 전압제어 발진기에 관한 연구
- Kim, Young-Gi (Dept. of Data Communication, Anyang University) ;
- Kim, Hyeuk (Dept. of Data Communication, Anyang University) ;
- Jung, Eu-Suk (Dept. of Data Communication, Anyang University) ;
- Heak, Kyung-Sik (Dept. of Data Communication, Anyang University) ;
- Lee, Jae-Hoon (Yujung Systems Ltd.)
- Published : 1999.11.01
Abstract
This Paper presents the design, fabrication, analysis of the measured date of a voltage controlled oscillator(VCO) for the application of Personal Communication Systems. Main VCO circuit consists of self biased emitter resonating circuit with microstrip line resonator on FR4 epoxy substrate. A varactor diode is used for 90MHz frequency tuning with center frequency of 1635MHz Phase noise of -114.67㏈C/Hz at 100KHz off set has been achieved with 3.3 V supply. The size of the fabricated VCO circuit is 1.25 cm
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