The theory of chirowaveguides

Author

Pelet, Philippe ; Engheta, Nader

Author_Institution

Dept. of Electr. Eng., Pennsylvania Univ., Philadelphia, PA, USA

Volume

38

Issue

1

fYear

1990

fDate

1/1/1990 12:00:00 AM

Firstpage

90

Lastpage

98

Abstract

The theory of chirowaveguides is discussed, and their salient features are analyzed. It is shown that the Helmholtz equations for the longitudinal components of electric and magnetic fields in chirowaveguides are always coupled and that, consequently, in these waveguides individual transverse electric (TE), transverse magnetic (TM), or transverse electromagnetic (TEM) modes cannot be supported. As an illustrative example, the parallel-plate chirowaveguide is analyzed in detail and the corresponding dispersion relations, cutoff frequencies, and propagating and evanescent modes are obtained. In the dispersion (Brillouin) diagram for a chirowaveguide, three regions are identified: the fast-fast-wave region, the fast-slow-wave region and the slow-slow-wave region. For each of these regions, the electromagnetic field components in a parallel-plate chirowaveguide are analyzed and the electric field components are plotted. Potential applications of chirowaveguides in integrated optical devices, communications systems, and printed circuit antennas are mentioned

Keywords

waveguide theory; Helmholtz equations; chirality; chirowaveguides; communications systems; cutoff frequencies; dispersion relations; electric fields; electromagnetic field components; evanescent modes; fast-fast-wave region; fast-slow-wave region; integrated optical devices; magnetic fields; parallel plate waveguide; printed circuit antennas; propagating modes; slow-slow-wave region; Electromagnetic coupling; Electromagnetic fields; Electromagnetic scattering; Electromagnetic waveguides; Equations; Magnetic analysis; Magnetic fields; Optical waveguides; Tellurium; Waveguide components;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.43593

Filename

43593