Subwavelength 결함접지구조(defected grounded structure : DGS)를 이용한 Homogeneous Dual Composite Right/Left-Handed 메타물질 구현

Homogeneous Dual Composite Right/Left-Handed Metamaterial Using Subwavelength Defected Ground Structure(DGS)

  • 박우영 (중앙대 공대 전자전기공학부) ;
  • 임성준 (중앙대 공대 전자전기공학부)
  • 발행 : 2009.11.01

초록

In this paper, a homogeneous dual composite right/left-handed (D-CRLH) transmission line (TL) is proposed by using a defected ground structure (DGS) on the ground plane. In order to satisfy a homogeneity condition of metamaterial, a subwavelength unit cell is designed by way of a spiral DGS and a meander stub. From a dispersion diagram, it is expected that the frequency bands for the left-handed (LH) property is 3.5 - 4.4 GHz. At 3.8 GHz in the LH band, backward propagating phenomenon is observed from full-wave analysis. The experimental results show that the proposed TL has a stop-band in 1.75 - 3.6 GHz.

키워드

참고문헌

  1. V.G. Veselago, The electrodynamics of substances with simultaneously negative values of $\epsilon$ and $\mu$, Sov. Phys. Usp., Vol. 10, no. 4, pp. 509-514, Jan-Feb. 1968 https://doi.org/10.1070/PU1968v010n04ABEH003699
  2. J.B. Pendry, A.J. Holden, D.J. Robins, W.J. Stewart, Magnetism from conductors and enhanced nonlinear phenomena, IEEE Trans. on Microwave Theory and Tech., vol. 47, no. 11, pp. 2075-2084, Nov. 1999 https://doi.org/10.1109/22.798002
  3. A.K. Iyer and G.V. Eleftheriades, Negative refractive index media using periodically L-C loaded transmission lines, in IEEE-MTT-S Int. Microwave Symp. Dig., June 2002, pp. 1067-1070
  4. 윤재웅, 송석호, 오차환, 김필수, 금속과 왼손잡이 메타 물질의 경계면에서 형성되는 표면 폴라리톤의 전파 특성, 대학광학회지, Vol. 15, No.2, April. 2004 https://doi.org/10.3807/KJOP.2004.15.2.089
  5. R. A. Shelby, D. R. Smith, and S. Schultz, Experimental verification of a negative index of refraction, Science, vol. 292, pp. 77-79, Apr. 2001 https://doi.org/10.1126/science.1058847
  6. A. Lai., T. Itoh, and C.Caloz, Composite right/left-handed transmission line metamaterials, IEEE Microwave Mag 5 (2004), 34-50
  7. C. Caloz and T. Itoh, Application of the transmission line theory of left-handed (LH) materials to the realization of a microstrip LH line, IEEE Antennas Propagation Symp. Dig. vol. 2, pp. 412-415, June 2002
  8. 박재현, 류영호, 김동진, 추호성, 이정해, 메타물질 전송 선로를 이용한 소형 나선구조 Zeroth-order Resonance 안테나, 대한전자공학회, Vol. 44, No.7, July. 2007
  9. M.D. Pozar, Microwave Engineering, 3rd edn. (Wiley, 2004)
  10. C. Caloz, Dual composite right/left-handed (D-CRLH) transmission line metamaterial, IEEE Microwave and Wireless Components Letters, Vol. 16, pp. 585-587, Nov. 2006 https://doi.org/10.1109/LMWC.2006.884773
  11. Y.H. Ryu, J.H. Park, J.H. Lee, J.Y. Kim, H.S. Tae, DGS dual Composite Right/Left Handed Transmission Line, IEEE Microwave and Wireless Components Letters, vol. 18, pp. 434-436, July 2008 https://doi.org/10.1109/LMWC.2008.924909