Dielectric sphere diffracted fields of corrugated conical horn
Abstract
The diffraction effects of dielectric spheres placed in front of, but displaced from, the aperture of a corrugated conical horn are investigated. It is found that the 3-dB beamwidth of the corrugated horn can be reduced by dielectric spheres offset in front of its aperture. The 3-dB beamwidth is found to be dependent on the dielectric sphere diameter. The on-axis gain of the horn is improved through dielectric sphere loading. The system possesses a variable beamwidth capability in that the 3-dB beamwidth can be controlled by the offset dielectric sphere diameter.
- Publication:
-
10th European Microwave Conference
- Pub Date:
- 1981
- Bibcode:
- 1981eumw.conf..469N
- Keywords:
-
- Antenna Radiation Patterns;
- Dielectrics;
- Horn Antennas;
- Wave Diffraction;
- Beams (Radiation);
- Conical Bodies;
- Corrugating;
- Power Gain;
- Sidelobe Reduction;
- Spheres;
- Communications and Radar