Journal of Advanced Navigation Technology (한국항행학회논문지)

The Korean Navigation Institute (한국항행학회)
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Dual-Mode Balanced Filter in Symmetric Composite Right/Left-Handed Transmission Line Structure

CRLH 전송선로 대칭구조의 이중모드 평형 필터

  • Kim, Young (School of Electronic Engineering, Kumoh National Institute of Technology) ;
  • Sim, Seok-Hyun (School of Electronic Engineering, Kumoh National Institute of Technology) ;
  • Yoon, Young-Chul (Department of Electronics & Information Communication Eng., Kwandong University)
  • 김영 (금오공과대학교 전자공학부) ;
  • 심석현 (금오공과대학교 전자공학부) ;
  • 윤영철 (관동대학교 전자정보통신공학부)
  • Received : 2013.02.27
  • Accepted : 2013.04.30
  • Published : 2013.04.30
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Abstract

In this paper, a dual-mode balanced filter with symmetric coupled composite right/left-handed transmission line is introduced. Unlike the other symmetric structure, this configuration has the ability to operate under both common- and differential-mode excitation. These properties are achievable through providing physical short circuit by means of ground vias at the center of each unit-cell along the symmetry plane of the structure. Because the CRLH unit-cells are operated under both common- and differential-mode excitation, we implemented a balanced filter using these properties. To validity these features, a five-cell four port coupled CRLH-TL is simulated, fabricated and measured and the obtained performances agree with the simulation results under both common- and differential-mode excitation.

본 논문은 대칭 구조의 CRLH 전송선로를 바탕으로 이중모드에서 동작하는 평형 필터 설계를 제안한 것이다. 기존의 대칭 구조와는 다르게 이 구조에서는 공통 모드와 차동 모드의 이중모드에서 동작한다. 이러한 성질은 이 구조의 대칭면에 단락회로를 그라운드 비아에 의해서 동작되도록 구현하였다. 이렇게 하면 공통 모드와 차동 모드에서 모두 동작하는 특성을 얻을 수 있으며, 이러한 성질을 이용하여 평형 필터를 구현하였다. 이러한 특징들을 확인하기 위하여 5개의 대칭 CRLH 단위 셀로 시뮬레이션, 제작 및 측정을 하여 공통 모드와 차동 모드에서 동일하게 동작하는 평형 필터의 특성을 얻었다.

Keywords

References

  1. C. Caloz and T. Itoh, Electromagnetic Metamaterials : Transmission Line Theory and Microwave Applications. New York: John Wily &, Sons, 2004.
  2. M.R. Hashemi and T. Itoh, "Dispersion Engineered Metamaterial-based Transmission Line for Conformal Surface Application," IEEE MTT-S Int. Microwave Symp. Jun. 2008.
  3. W. Fan, et al, "Mixed-Mode S-Parameter Characterization of Differential Structures," IEEE 5th Electron. Packag. Technol. Conf. 2003.
  4. Changjun Liu, and Wolfgang Menzel, "Broadband Via-Free Microstrip Balun using Metamaterial Transmission Lines," IEEE Microwave and Wireless Components Letters, 2008.
  5. Y. Kim, E. Kim, A. Lai, D.S. Goshi and T. Itoh,"Integrated Mixer based on Composite Right/Left-Handed Leaky-Wave Antenna," IEEE MTT-S Int. Microwave Symp., Jun. 2008.
  6. M.R. Hashemi and T. Itoh, "Dual Mode Leaky Wave Excitation in Symmetric Composite Right/Left-Handed Structure with Center Vias," IEEE MTT-S Int. Microwave Symp. Jun. 2010.
  7. D.E. Bockelman, and W.R. Eisenstadt," Combined Differential and Common-mode Scattering Parameters: Theory and Simulation," IEEE Trans. Microw. Theory Tech., vol. 43, no. 7, pp.1530-1539, July 1995. https://doi.org/10.1109/22.392911
  8. Y. Kim, J.H. Yun, and Y. C. Yoon, "Common-Mode Suppression Balanced Filter based on Composite Right/Left-Handed Transmission Lline," The Journal of Korea Navigation Institute, Vol. 15-4, Aug. 2011.
  9. F. Casares-Miranda, P. Otero, E. Mrquez-Segura, and C. Camacho-Pealosa, "Wire Bonded Interdigital Capacitor," IEEE Microwave Wireless Compon. Lett., vol. 15, no. 10, pp.700-702, Oct. 2005. https://doi.org/10.1109/LMWC.2005.856835