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학술지 K-Band Frequency Tunable Substrate-Integrated- Waveguide Resonator Filter With Enhanced Stopband Attenuation
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저자
이보영, 남승구, 고병윤, 곽창수, 이주섭
발행일
201511
출처
IEEE Transactions on Microwave Theory and Techniques, v.63 no.11, pp.3632-3640
ISSN
0018-9480
출판사
IEEE
DOI
https://dx.doi.org/10.1109/TMTT.2015.2483495
협약과제
15MR2600, 차기위성 Flexible 통신방송 탑재체 핵심기술 개발, 안재영
초록
In this paper, we present a K-band substrate-integrated waveguide resonator bandpass filter structure. The filter uses an antisymmetric mode of the resonator for the first time. A design method for the external coupling structure of the resonator utilizing the antisymmetric mode is described. In addition, a methodology for suppressing neighboring resonances close to the passband is demonstrated. This method can enhance stopband attenuation performance without additional loss. The proposed filter can tune the center frequency by adjusting tuning components. In order to verify the proposed filter structure and design method, we have fabricated and measured a K-band filter and demonstrated higher order filter design.
키워드
Anti-symmetric second-order mode, bandpass filter, filter, K-band filter, suppressing undesired resonance mode
KSP 제안 키워드
Additional loss, Anti-symmetric, Attenuation performance, Band pass Filter(BPF), Center frequency, Coupling structure, Design method, Higher Order Filter, K-band, Resonance mode, Resonator filters