Effect of the resonance regimes of a finite number of open cylinders on their scattering properties
Abstract
A rigorous solution of the diffraction problem is used to analyze the electrodynamic properties of a scatterer consisting of four open circular cylindrical screens of small wave dimensions. The near and far fields are studied on the basis of a determination of the quasi-natural modes of the structure, whose excitation leads to the appearance of resonances of the total scattering cross section and to changes in the directivity pattern of the scattered field. It is noted that the present results can be extended to the case of obstacles with a more complex configuration, consisting of a large number of elements with resonance properties in the long-wave range.
- Publication:
-
Propagation and Diffraction of Radio Waves in the Millimeter and Submillimeter Ranges
- Pub Date:
- 1984
- Bibcode:
- 1984pdrw.rept..166V
- Keywords:
-
- Antenna Radiation Patterns;
- Cylindrical Antennas;
- Electrodynamics;
- Electromagnetic Scattering;
- Resonance Scattering;
- Screen Effect;
- Antenna Arrays;
- H Waves;
- Scattering Cross Sections;
- Vibration Mode;
- Wave Diffraction;
- Wave Excitation;
- Communications and Radar