Analysis of wire antennas in the presence of a conducting half space. Part 3: The buried antenna
Abstract
The reflection coefficient approximation (RCA) for modeling objects located near an interface between electrically different half spaces is discussed. The procedure to handle objects on opposite sides of the interface is described. The method, which is denoted as the transmission coefficient approximation (TCA), is based on a ray-optics formulation and an assumed reciprocity along a given ray path. An integral-equation, moment-method technique for wires, when combined with the RCA-TCA, permits modeling the response of antennas above ground to buried objects. Similar problems of geophysical interest, as well as those of the more conventional antenna interface, may also be modeled. Sample results to illustrate how the technique may be applied are presented. A comparison of results is made between the RCA-TCA and those obtained from a rigorous treatment based on the Sommerfeld integrals to demonstrate the validity of the approximate approach.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- February 1977
- Bibcode:
- 1977STIN...7733400M
- Keywords:
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- Antennas;
- Approximation;
- Electric Conductors;
- Wire;
- Mathematical Models;
- Sommerfeld Waves;
- Communications and Radar