The theoretical and experimental analysis of antennas in bounded media with application to electromagnetic probing
Abstract
A theoretical and experimental investigation is made of coupled linear antennas in rectangular waveguide filled with a homogeneous, linear, isotropic medium. It is assumed that the antennas do not span the waveguide, the waveguide has arbitrary terminations and the medium is known in terms of its macroscopic electrical parameters. The integral equations for the unknown antenna currents are found by applying modal analysis and the Lorentz reciprocity relation to the electric field boundary condition on the antenna. First a delta function source model is assumed with both the thin wire and thin strip approximations made for the antenna. The integral equations are then solved numerically by the method of moments and the thin strip approximation is shown to exhibit improved convergence properties over the conventional thin wire approximation.
- Publication:
-
Ph.D. Thesis
- Pub Date:
- 1975
- Bibcode:
- 1975PhDT........35G
- Keywords:
-
- Antenna Radiation Patterns;
- Isotropic Media;
- Rectangular Waveguides;
- Waveguide Antennas;
- Approximation;
- Current Distribution;
- Electromagnetic Fields;
- Resonance Probes;
- Communications and Radar