A dielectric rod antenna as a high efficiency feed for reflector antennas
Abstract
Radiation characteristics of a short dielectric rod antenna excited by a circular waveguide are investigated experimentally. It is found that, by a proper selection of the waveguide radius and the exposed length of dielectric rod, the E and H plane radiation patterns, the side and back radiations and the bandwidth of the antenna can be controlled. Some experimental data are presented and the usefulness of this antenna as a feed for paraboloidal reflectors is also discussed
- Publication:
-
Canadian Electrical Engineering Journal
- Pub Date:
- October 1981
- Bibcode:
- 1981CEEJ....6...10I
- Keywords:
-
- Antenna Feeds;
- Antenna Radiation Patterns;
- Dielectrics;
- Parabolic Reflectors;
- Reflector Antennas;
- Rods;
- Waveguide Antennas;
- Earth Terminals;
- Horn Antennas;
- Parabolic Antennas;
- Power Efficiency;
- Communications and Radar