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학술대회 A Study on 8-pole Waveguide Filters with Triple Passbands
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안기범, 엄만석, 염인복
AIAA International Communications Satellite Systems Conference (ICSSC) 2007, pp.1-5
07MR1100, 통신해양기상위성 개발, 이성팔
This paper presents a study on two 8-pole waveguide filters with triple passbands for Ka band satellite applications. The performances of the triple-passband filter designed newly to improve the electrical performances was compared with those of the former filter. The transfer function and coupling matrix of the filters are obtained from the transmission and reflection zeros optimized to the optimum electrical performances. Dual-mode circular waveguide cavities were adopted for realization of two triple-passband filters. Very good agreement between the measured and simulated results of them was obtained. The new design result has better performance than the former one in return loss (over 18dB) and insertion loss (under 0.9dB) in each band. The new design has been successfully demonstrated and should be useful in recent complex communications systems. © 2007 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.
KSP 제안 키워드
Complex Communications Systems(CCS), Coupling Matrix, Dual-Mode, Ka band satellite, Return loss(RL), Satellite applications, Waveguide filter, circular waveguide, insertion loss, transfer function(DTF), transmission and reflection