Multi-Resonator Generation by Genetic Optimization for Application to Planar-Circuit Bandpass Filters

• Tsuji Mikio

  Dept, of Electronics, Doshisha University

• Deguchi Hiroyuki

  Dept, of Electronics, Doshisha University

• Kido Akinori

  Dept, of Electronics, Doshisha University

• Ohira Masataka

  ATR Wave Engineering Laboratories

Abstract

This paper proposes a design method of arbitrarily-shaped bandpass filters with multiple resonators in the limited space. Although the proposed method is based on the genetic-algorithm (GA) optimization, we newly introduce the fitness function which estimates not only the magnitude of S-parameters but also the phase characteristics in a passband. Conventional GAs without phase evaluation are difficult to design a filter having the specified number of resonators efficiently, whereas the present method can easily construct such a filter. As an example, arbitrarily-shaped planar-circuit filters with 3 and 4 resonators are optimized in the limited space and fabricated. The effectiveness of the present technique is verified by comparison of frequency responses between the calculated and the measured results.

Journal

• IEEJ Transactions on Fundamentals and Materials

  IEEJ Transactions on Fundamentals and Materials 129 (10), 681-686, 2009

  The Institute of Electrical Engineers of Japan

Keywords

• planar filter
• microstrip line
• moment method
• genetic algorithm
• optimization

Details

• CRID: 1390001204594401280
• NII Article ID: 10025318064
• NII Book ID: AN10136312
• DOI: 10.1541/ieejfms.129.681
• ISSN: 13475533
• ISSN: 03854205
• NDL BIB ID: 10450658
• Web Site: http://id.ndl.go.jp/bib/10450658
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I10450658
• Web Site: http://www.jstage.jst.go.jp/article/ieejfms/129/10/129_10_681/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed