Leaky and surface waves in anisotropic printed antenna structures
Abstract
The behavior of the leaky and surface wave modes supported by single and double-layered grounded anisotropic dielectric structures is investigated. Simple low frequency and high frequency asymptotic formulas are derived for the wavenumbers. The effects of dielectric anisotropy and losses on the cutoff frequency of the surface waves and on the radiation pattern of a leaky wave antenna are examined.
- Publication:
-
IEEE Transactions on Antennas and Propagation
- Pub Date:
- May 1992
- DOI:
- 10.1109/8.142634
- Bibcode:
- 1992ITAP...40..566P
- Keywords:
-
- Anisotropic Media;
- Dielectrics;
- Electromagnetic Surface Waves;
- Wave Equations;
- Antenna Radiation Patterns;
- Asymptotic Methods;
- Newton-Raphson Method;
- Communications and Radar