Browse > Article

A Realization on the Dualband VCO Using T-Junction Switching Circuit  

Oh Icsu (School of Electronic Engineering, Soongsil University)
Seo Chulhun (School of Electronic Engineering, Soongsil University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.42, no.1, 2005 , pp. 105-110 More about this Journal
Abstract
In this paper, a new technique to reduce the phase noise in microwave oscillators is proposed using the resonant characteristics of the Photonic Bandgap(PBG). We applied PBG structure to ground of the microstrip line resonator with the low Q(Quality factor). Therefore, we improved about 10 dBc in contrast to phase noise characteristic of the conventional microstrip line oscillator at 2.4 GHz ＠ 100 MHz offset. Output power is 7.09 dBm.
Keywords
PBG; Oscillator; Phase Noise;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 R. P. Mansour and J. Dude, 'Analysis of microstrip T-junction and its application to the design of transfer switches', Microwave Symposium Digest, IEEE MIT-S International, pp.889-892, 1992   DOI
2 I. Wolff G. Kompa and R. Mehran, 'Calculation method of microstrip discontinuities and T-Junctions', Electron Lett', vol. 8 pp. 177-179, 1972   DOI   ScienceOn
3 Wei-Zen Chen, Jia-Xian Chang. 'A 2V, 2.3/4.6 GHz Dual-Band CMOS Frequency Synthesizer.' 2002 IEEE RFIC Symposium, MO3D-2, pp, 169-172. 2002   DOI
4 David M. Pozar, 'Microwave Engineering', Addison Wesley, 1990
5 Behzard Razavi, 'RF Microelectronics', Prentic Hall, 1998
6 Christopher Lam and Behzad Razavi, 'A 2.6 GHz/5.2-GHz frequency synthesizer in $0.4{\um}m$ CMOS technology.' IEEE Journal of Solid-state Circuits, vol. 35, pp. 788-794, May 2000   DOI   ScienceOn
7 조용기, 서철헌, 'Photonic Bandgap 구조를 이용한 저 위상잡음 듀얼밴드 VCO에 관한 연구,' 대한전자공학회논문지, 2004, 2 v.041, n.002, pp.53-58. 2004   과학기술학회마을
8 T. S. OH, Y. H. Lee, '저 비용 듀얼 대역 전압제어 발진기 설계', 2001년도 한국전자파학회 종합학술발표회 논문집 Vol. 11 No. 1 2001.11.3
9 T. S. OH, Y. H. Lee, '발진부 귀환 스위칭회로를 이용한 이동통신 단말기용 듀얼대역 전압제어 발진기 특성에 관한 연구', 한국전자파학회논문지 2002,1 v.013, n.001, pp.60-67. 2002   과학기술학회마을
10 J. D. Park 'Dual-mode VCO with Controllable Resonant Circuit for PCS/IMT2000,' Microwave and Millimeter Wave Technology, 2000, 2nd International Conference on. ICMMT 2000, pp.122-125. 2000
11 염경환, 박동철, '이동 통신용 전압제어발진기(VCO)의 구성 및 발전 동향', The Electronic Parts & Components Monthly, Jan. 1998   과학기술학회마을