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A Double-Beam Radiation Leaky Wave Antenna Based on Left-Handed Material Slab with Metallic Strips Periodically Loaded

  • Yongmei Pan
  • Shanjia Xu
Article

Abstract

A new leaky-wave antenna structure is carefully investigated in the paper, which is based on a grounded Left-Handed material (LHM) slab periodically loaded with metal strips. A rigorous formulation similar to the spectral domain method for planar circuits is deduced to analyze the radiation characteristics of the antenna. Theoretical analysis results reveal that at specific frequency region or with proper geometrical parameters chosen, the present structure supports simultaneously two leaky modes corresponding to the forward and backward radiations. The principle of the antenna is due to the peculiar propagation properties of the unperturbed LHM grounded slab waveguide, which is totally different from the phenomenon of double or even more space harmonic mode radiations in normal periodic structures. Extensive numerical results of the leakage characteristics are given to establish useful guidelines for the design of the new type leaky wave antenna.

Keywords

Leaky-wave antenna Left-handed material Radiation characteristics Two leaky modes Peculiar propagation properties 

Notes

Acknowledgment

The work described in this paper is supported by the National Natural Science Foundation of China (No. 60531020)

References

  1. 1.
    R. W. Ziolkowski and E. Heyman, Wave propagation in media having negative permittivity and permeability, Phys. Rev. E, 64(5), 056625:1–25, (2001).Google Scholar
  2. 2.
    R. W. Ziolkowski and A. D. Kipple, Application of double negative materials to increase the power radiated by electrically small antennas, IEEE Trans. Antennas Propag. Vol. AP-51, 2626–2640, (2003).Google Scholar
  3. 3.
    J. B. Pendry, Negative refraction makes a perfect lens. Phys. Rev. Lett. 85(18), 3966–3969 (2000).CrossRefGoogle Scholar
  4. 4.
    H. Dong, and T. X. Wu, Analysis of discontinuities in double negative (DNG) slab waveguides. Microwave Opt. Technol. Lett. 39(6), 483–488 (2003).CrossRefGoogle Scholar
  5. 5.
    P . Baccarelli et al., Fundamental modal properties of Surface waves on metamaterial grounded slabs. IEEE Trans. Microwave Theor Tech. 53(4), 1431–1443 (2005).CrossRefMathSciNetGoogle Scholar
  6. 6.
    F. Schwering, and S. T. Peng, Design of dielectric grating antennas for millimeter wave applications. IEEE Trans. Microwave Theor Tech. 31(2), 199–208 (1983).CrossRefGoogle Scholar
  7. 7.
    J. A. Encinar, Mode-matching and Point-matching techniques applied to the analysis of metal-strip-loaded dielectric antennas. IEEE Trans. Microwave Theor Tech. 38(9), 1405–1412 (1990).Google Scholar
  8. 8.
    S. J. Xu, and X. Z. Wu, A millimeter-wave omnidirectional dielectric rod metallic grating antenna. IEEE Trans. Antennas Propag. 44(1), 74–79 (1996).CrossRefMathSciNetGoogle Scholar
  9. 9.
    T. Itoh, and R. Mittra, Dispersion characteristics of slot lines. Electron. Lett. 7(13), 364–365 (1971).CrossRefGoogle Scholar
  10. 10.
    W. Huang, and T. Itoh, Complex modes in lossless shielded microstriplines. IEEE Trans. Microwave Theor Tech. 36, 163–165 (1988).CrossRefGoogle Scholar
  11. 11.
    I. J. Bahl, and K. C. Gupta, A leaky-wave antenna using an artificial medium”. IEEE Trans. Antennas Propag. 22, 119–122 (1974).CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  1. 1.Department of Electronics Engineering and Information ScienceUniversity of Science & Technology of ChinaHefeiP.R. China

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