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학술지 Study on Slot Irises for Tunable Filters Using TE011 Mode
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저자
곽창수, 엄만석, 염인복
발행일
201502
출처
Electronics Letters, v.51 no.3, pp.266-268
ISSN
0013-5194
출판사
IET
DOI
https://dx.doi.org/10.1049/el.2014.3552
협약과제
14MR3100, 차기위성 Flexible 통신방송 탑재체 핵심기술 개발, 안재영
초록
Tunable filters using the TE011 mode have slot irises for coupling between cavities. Unless the slot iris is appropriately designed, the coupling value of the iris varies as an operating frequency changes and the filter performance deteriorates as a result. In this reported work, it was found that the frequency-dependent coupling characteristic of the slot iris can be minimised by locating the iris appropriately. Why the coupling of a slot iris changes when the operating frequency is tuned is explained and how to find the optimum location of the slot iris for minimum variation of the coupling value is presented. The proposed theory is verified by full-wave EM simulations and experiments with a Ka-band two-pole filter.
KSP 제안 키워드
Coupling Characteristics, EM simulation, Filter performance, Frequency change, Full-wave, Operating frequency, Tunable filters(TFs), frequency dependent, ka-band, optimum location