Proceedings of the Korea Electromagnetic Engineering Society Conference (한국전자파학회:학술대회논문집)
- 2003.11a
- /
- Pages.304-308
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- 2003
5.8GHz Band Frequency Synthesizer using Harmonic Oscillator
하모닉 발진을 이용한 5.8GHz 대역 주파수 합성기
- Choi, Jong-Won (Dept. of Electrical and Computer Eng., University of Seoul) ;
-
Lee, Moon-Que
(Dept. of Electrical and Computer Eng., University of Seoul)
;
- Shin, Keum-Sik (Sangshin Elecom Co. LTD.) ;
- Son, Hyung-Sik (Sangshin Elecom Co. LTD.)
- Published : 2003.11.15
Abstract
A low cost solution employing harmonic oscillation to the frequency synthesizer at 5.8 GHz is proposed. The proposed frequency synthesizer is composed of 2.9GHz PLL chip, 2.9GHz oscillator, and 5.8GHz buffer amplifier. The measured data shows a frequency tuning range of 290MHz, ranging from 5.65 to 5.94GHz, about 0.5dBm of output power, and a phase noise of -107.67 dBc/Hz at the 100kHz offset frequency. All spurious signals including fundamental oscillation power (2.9GHz) are suppressed at least 15dBc than the desired second harmonic signal.