Electromagnetic analysis of radomes by the moment method
Abstract
The electromagnetic performance of radomes is usually analyzed approximately by ray tracing, surface integration, or angular spectra. A significant approximation is that the radome is locally flat, and transmittance at a point is described by a set of flat sheets of infinite extent. This approximation is significant in the analysis of wave polarization dependence of boresight error, especially near the shadow of a tip where the surface normal direction varies rapidly because of circumferential curvature. This paper describes calculations for hollow wedges; these are based on a theory of J. H. Richmond for hollow cylinders of arbitrary shape. The paper also gives a new theory for hollow cones and circular rings, and it compares computed and measured phase and intensity values for a cone and a ring.
- Publication:
-
Electromagnetic Windows (17th)
- Pub Date:
- 1984
- Bibcode:
- 1984elwi.proc....1T
- Keywords:
-
- Boresight Error;
- Circular Cylinders;
- Electromagnetic Properties;
- Radomes;
- Ray Tracing;
- Cones;
- Electromagnetism;
- Far Fields;
- Polarization (Waves);
- Ring Structures;
- Scattering;
- Communications and Radar