한국해양대학교

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링 공진기를 사용한 대역통과 필터의 설계에 관한 연구

Title
링 공진기를 사용한 대역통과 필터의 설계에 관한 연구
Alternative Title
A Study on Design of Band Pass Filter Using Ring Resonators
Author(s)
김보영
Publication Year
2004
Publisher
한국해양대학교 대학원
URI
http://kmou.dcollection.net/jsp/common/DcLoOrgPer.jsp?sItemId=000002174875
http://repository.kmou.ac.kr/handle/2014.oak/8992
Abstract
With the development of electronics, information, and communication industries, the radio communication systems accomplished fast growth and the quality of human life is improving rapidly under benefit of various informations.

Filter is one of the elements indispensable for microwave /millimeterwave system. Various kinds of filters have been studied and developed. The filter with better characteristics is needed for qualitative elevation of microwave system. In this work, in order to realize a band pass filter with wide-band characteristics for mobile communications, 2 GHz band pass filter was designed using ring resonator with stub. The three stage wide-band BPF was designed and fabricated. For broadband design, the ring circumference was divided by 4 sections with 1/8 wavelength and 2 sections with 1/4 wavelength which have different line impedances. The characteristics of the proposed BPF were highly improved by using three stage ring resonator. The characteristic impedance values of each sections were obtained by Powell's least square algorithm where differentiations are not needed. The measured results showed a good agreement with the theoretical results as well as ADS simulation.
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전파공학과 > Thesis
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000002174875.pdf Download

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