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柳烈國,李思遠,金洪五 충주대학교 1997 한국교통대학교 논문집 Vol.32 No.2
In this paper, a design method of a bandpass filter using microstrip coupled lines has been studied. In order to verify the appropriateness of the design method based on the basic theory, a microstrip coupled-lines bandpass filter with the center frequency of 5 GHz,the order of 4 and 6, and the ripple of 0.5dB was designed and tested. The test results were compared to the simulation results by Touchston, a simulation tool. As a conclusion, we found that the theoretical value well agrees with the exprimental one.