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학술지 A Narrow Bandwidth Microstrip Band-Pass Filter with Symmetrical Frequency Characteristics
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저자
전동석, 이홍열, 김동영, 이상석, 남은수
발행일
200510
출처
ETRI Journal, v.27 no.5, pp.643-646
ISSN
1225-6463
출판사
한국전자통신연구원 (ETRI)
DOI
https://dx.doi.org/10.4218/etrij.05.0204.0069
협약과제
04MB1200, 60GHz Pico Cell 통신용 SoP(구:60GHz 광대역 무선 LAN 기술 개발), 조경익
초록
This letter proposes a band-pass filter (BPF) with two transmission zeros based on a combination of parallel coupling and end coupling of half-wave transmission lines. The fabricated BPF exhibited a narrow bandwidth and two transmission zeros near the pass-band due to the end-coupled and shielding waveguide. At the center operation frequency of 60 GHz, the 20 dB bandwidth of the BPF is 1.0 GHz, which is almost 2% of the center operation frequency, and the insertion loss is 3.12 dB. Two transmission zeros reach approximately 40 dB at 58.5 and 62.5 GHz. The simulation results almost agree with the measured results.