Bragg transformation in horns with two-dimensional perturbation of permittivity

Authors

DOI:

https://doi.org/10.1109/ICATT.2003.1238782

Keywords:

plane horn, Bragg effects, quasi-periodic inhomogeneity, anisotropic expansions, polarization coupling

Abstract

The paper considers Bragg reflection and mode conversion of waves of both polarizations in horns filled with a medium having a nonperiodic two-dimensional perturbation of permittivity. The combination of longitudinal and angular quasi-periodic inhomogeneity supplies resonance coupling of waves with different angular numbers or/and directions of propagation. Solution of the boundary-value problem is found by the asymptotic method of Krylov, Bogoliubov and Mitropolsky. The phenomenon of "Brewsterization" of Bragg reflection is investigated.

References

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Borulko, V.F. Polarization and mode conversions in nonperiodically corrugated waveguides with a gyrotropic filling. Proc. of the 1995 URSI Int. Symp. on Electromagnetic Theory, May 23-26, 1995, St. Petersburg, Russia. 1995, pp. 729-731.

Bogoliubov, N.N.; Mitropolsky, Y.A. Asymptotic Methods in the Theory of Nonlinear Oscillations. New York: Gordon and Breach Science Publ., 1961.

Borulko, V.F.; Ivanilov, V.E. Two-dimensional Bragg resonator with nonperiodic radial perturbation of parameters. Proc. of Int. Symp. on Physics and Engineering of Millimeter and Submillimeter Waves, Sept. 15-17, 1998, Kharkov, Ukraine. 1998, Vol. 2, pp. 641-643.

Ouyang, G.; Xu, Y.; Yariv, A. Comparative study of air-core and coaxial Bragg fibers: single-mode transmission and dispersion characteristics. Opt. Express, 2001, Vol. 9, No. 13, pp. 733-747.

Published

2003-09-25

Issue

Section

LGA, printed antennas, antennas for mobile communication