Electromagnetic Penetration into an Annular Aperture in a Thick Conductor

  • Published : 2005.09.01

Abstract

Electromagnetic penetration into an annular aperture in a thick conducting plane is investigated with the integral transform and eigen-function expansion method. The solution is analytic and is represented in rapidly-convergent series which is amenable to numerical analysis. Numerical computations shows that apertures with narrow annular gap have sharp transmit power peaks in frequency response.

References

  1. C. E. Tong, R. Blundell, 'An annular slot antenna on a dielectric half-space', IEEE Trans. Antennas Propagat., vol. 42, no. 7, pp. 967-974, 1994 https://doi.org/10.1109/8.299599
  2. D. M. Kokotoff, J. T. Aberle, and R. B. Water-house, 'Rigorous analysis of probe-fed printed annular ring antennas', IEEE Trans. Antennas Propagat., vol. 47, no. 2, pp. 384-388, 1999 https://doi.org/10.1109/8.761079
  3. H. S. Lee, H. J. Eom, 'Radiation from a corrugated circular waveguide with a flange', Journal of Electromagnetic Waves and Applications, vol. 16, no. 9, pp. 1255-1274, 2002 https://doi.org/10.1163/156939302X00750
  4. S. D. Gedney, R. Mittra, 'Electromagnetic transmission through inhomogeneously filled slots in a thick conducting plane-arbitrary incidence', IEEE Trans. Electromag. Compat., vol. 34, no. 4, pp. 404-415, 1992 https://doi.org/10.1109/15.179273
  5. Y. P. Kathuria, 'Far-field radiation patterns of elliptical apertures and its annuli', IEEE Tran. Antennas Propagat., vol. 31, no. 2, pp. 360-364, 1983 https://doi.org/10.1109/TAP.1983.1143040
  6. E. P. Irzinsky, 'The input admittance of a TEM excited annular slot antenna', IEEE Trans. Antennas Propagat., vol. 23, no. 6, pp. 829-834, 1975 https://doi.org/10.1109/TAP.1975.1141187
  7. H. S. Lee, H. J. Earn, 'Polarizabilities of an annular aperture in a thick conducting plane', Journal of Electromagnetic Waves and Applications, vol. 12, no. 2, pp. 269-279, 1998 https://doi.org/10.1163/156939398X00836
  8. J. -M. Jin, J. L. Volakis, 'Electromagnetic scattering by and transmission through a three-dimensional slot in a thick conducting plane', IEEE Trans. Antennas Propagat., vol. 39, no. 4, pp. 543-550, 1991 https://doi.org/10.1109/8.81469
  9. K. Raj, T. C. Poon, 'Normalized formalism for the analysis of diffractionless beams', Proceedings of Twenty-Third Southeastern Symposium on System Theory of IEEE Comput. Soc. Press, Los Alamitos, Calif., pp. 147-151, 1991
  10. A. Roberts, R. C. McPhedran, 'Bandpass grids with annular apertures', IEEE Trans. Antennas Propagat., vol. 36, no. 5, pp. 607-611, 1988 https://doi.org/10.1109/8.192136
  11. N. Nikolic, J. S. Kat, and T. S. Bird, 'Theoretical and experimental study of a cavity-backed annular-slot antenna', IEE Proc.-Micro. Antennas Propag., vol. 144, no. 5, pp. 337-340, 1997
  12. H. S. Lee, H. J. Earn, 'Potential distribution through an annular aperture with a floating inner conductor', IEEE Trans. Microwave Theory Tech., vol. 47, no. 3, pp. 372-374, 1999 https://doi.org/10.1109/22.750245
  13. R. Luebbers, C. Penney, 'Scattering from apertures in infinite ground planes using FDTD', IEEE Trans. Antennas Propagat., vol. 42, no. 5, pp. 731736, 1994
  14. J. C. Batchelor, R. J. Langley, 'Micros trip annular ring slot antennas for mobile communications', Electronics Letters, vol. 32, no. 18, pp. 1635-1636, 1996 https://doi.org/10.1049/el:19961102
  15. T. Wang, R. F. Harrington, and J. R. Mautz, 'Electromagnetic scattering from and transmission through arbitrary apertures in conducting bodies', IEEE Trans. Antennas Propagat., vol. 38, no. 11, pp. 1805-1814, 1990 https://doi.org/10.1109/8.102743