Journal of electromagnetic engineering and science

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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GA-Optimized Compact Broadband CRLH Band-Pass Filter Using Stub-Inserted Interdigital Coupled Lines

  • Jeon, Jinsu (Department of Information and Telecommunication Engineering, Incheon National University) ;
  • Kahng, Sungtek (Department of Information and Telecommunication Engineering, Incheon National University) ;
  • Kim, Hyunsoo (Department of Information and Telecommunication Engineering, Incheon National University)
  • Received : 2014.11.14
  • Accepted : 2015.01.08
  • Published : 2015.01.30
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Abstract

The design of a new compact band-pass filter is proposed, which is based on the microstrip composite right- and left-handed transmission- line (CRLH-TL) structure. Particularly, the interdigital coupled (IDC) lines of the CRLH geometry are proposed to be parted by inserting open stubs to meet the specifications on the passband. In addition, there is another pair of stubs to complete the design in a limited space. These are considered in the TL-based analysis and the design parameters are calculated by genetic algorithm optimization. The measurement is shown to be acceptable and agreeable with the circuit and electromagnetic field simulations. In addition, the zerothorder resonance (ZOR) phenomenon is verified.

Keywords

References

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