한국전자파학회논문지 (The Journal of Korean Institute of Electromagnetic Engineering and Science)

  • 제21권11호
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  • Pages.1259-1268
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  • 2010
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  • 1226-3133(pISSN)
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  • 2288-226X(eISSN)
한국전자파학회 (The Korean Institute of Electromagnetic Engineering and Science)
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다중 대역 필터 설계를 위한 필터 합성법

A Filter Synthesis Method for Multi-Band Filter Design

  • 이혜선 (전남대학교 전자컴퓨터공학과) ;
  • 이자현 (전남대학교 전자컴퓨터공학과) ;
  • 임영석 (전남대학교 전자컴퓨터공학과)
  • Lee, Hye-Sun (Department of Electronic and Computer Engineering, Chonnam National University) ;
  • Lee, Ja-Hyeon (Department of Electronic and Computer Engineering, Chonnam National University) ;
  • Lim, Yeong-Seog (Department of Electronic and Computer Engineering, Chonnam National University)
  • 발행 : 2010.11.30
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⟨ 이전 논문 다음 논문 ⟩

초록

본 논문에서는 새로운 다중 대역 필터의 LC 프로토 타입 합성 방법을 제안하였다. 주어진 주파수 응답을 갖는 다중 대역 필터를 합성하기 위해, 극점과 영점의 배열 구조를 제안하였고, 최적화 알고리즘을 이용하여 극점과 영점의 최적화된 위치를 찾는 과정을 제안하였다. 또한, 극점과 영점으로 계산된 전달 및 반사 함수를 이용하여 다중 대역 필터의 준 타원 LC 프로토 타입을 합성하는 일련의 과정을 보였다. 제안된 다중 대역 필터의 LC 프로토 타입 합성법을 이용하여 GSM(880~960 MHz), ISM(2,400~2,500 MHz) 대역에서 동작하는 이중 대역 필터와 GSM(880~960 MHz), ISM(2,400~2,500, 5,725~5,850 MHz) 대역에서 동작하는 삼중 대역 필터를 설계 및 제작하였다.

In this paper, we presented a new LC prototype synthesis method for the multi-band filter. For synthesis a multi-band filter with the required frequency response, we proposed the diagram of poles and zeros, also, we proposed the optimization process for finding the combination of optimized poles and zeros. From the transfer and reflection functions calculated from poles and zeros, we performed the quasi-elliptic LC prototype synthesis of multi-band filter. Using the proposed LC prototype synthesis method of multi-band filter, dual-band filter operating at GSM(880~960 MHz) and ISM(2,400~2,500 MHz) and triple-band filter operating at GSM(880~960 MHz) and ISM(2,400~2,500, 5,725~5,850 MHz) were designed and fabricated.

키워드

참고문헌

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피인용 문헌

  1. A Method for Improving Stopband Characteristics of a Dual-Band Filter vol.11, pp.3, 2011, https://doi.org/10.5515/JKIEES.2011.11.3.186