Dual CRLH Based Band Stop Filter Using Conductor-Backed Defected Coplanar Waveguide
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초록
A band stop filter is proposed with cascading unit cells that are based on a dual composite right/left-handed (D-CRLH) conductor-backed coplanar waveguide. The parameters of the unit cell have been analyzed to confirm the behavior of each component for the equivalent circuit of the cell. We simulated the dispersion characteristics and energy distribution and have determined that the unit cell has a D-CRLH property. The band stop filter was implemented by symmetrically cascading two of the proposed unit cells. The experimental results for the band stop filter revealed a band rejection performance of 32 dB and a return loss of 0.35 dB in the stopband frequency range from 869MHz to 954MHz. Finally, we show that there is a good agreement in the experimental results and those obtained through the simulations.
Abstract
A band stop filter is proposed with cascading unit cells that are based on a dual composite right/left-handed (D-CRLH) conductor-backed coplanar waveguide. The parameters of the unit cell have been analyzed to confirm the behavior of each component for the equivalent circuit of the cell. We simulated the dispersion characteristics and energy distribution and have determined that the unit cell has a D-CRLH property. The band stop filter was implemented by symmetrically cascading two of the proposed unit cells. The experimental results for the band stop filter revealed a band rejection performance of 32 dB and a return loss of 0.35 dB in the stopband frequency range from 869MHz to 954MHz. Finally, we show that there is a good agreement in the experimental results and those obtained through the simulations.
참고문헌 (10)
- C. Caloz, "Application of the transmission line theory of left-handed (LH) materials to the realization of a microstrip LH transmission line", Proc. IEEE AP-S USNC, 2002, pp.2, 412~415
- C. Caloz, "Electromagnetic metamaterials: transmission line theory and microwave applications", pp.83~84 (2006), John Wiley & Sons
- C. Caloz, "Novel microwave devices and structures based on the transmission line approach of meta-materials", Proc. IEEE MTT-S International Symposium, 1, pp.195~198 (2003)
- A. Lai, "Composite right", lefthanded transmission line metamaterials, 2004, 34~50
- Q. Zhu, "Composite right", left handed transmission line metamaterials and applications, 2008, 72~75
- C. Caloz, "Dual composite right", left-handed (D-CRLH) transmission line metamaterial, 2006, pp.16(11), 585~587
- R. N. Simons, "Coplanar waveguide circuits, components, and systems", pp.87~109 (2001), John Wiley & Sons, Inc
- C. P. Wen, "Coplanar waveguide: a surface strip transmission line suitable for nonreciprocal gyromagnetic device applications", IEEE Transactions on Microwave Theory and Techniques, 17(12), pp.1087~1090 (1969)
- G. Ghione, "Coplanar waveguides for MMIC applications: effect of upper shielding, conductor backing, finite-extent ground planes, and line-to-line coupling", IEEE Transactions on Microwave Theory and Techniques, 35(3), pp.260~267 (2003)
- Y. C. Shih, "Analysis of conductor-backed coplanar waveguide", Electron Letters, 18(12), pp.538~540 (1982)