Propagation and radiation characteristics of the disc-on-rod antenna
Abstract
The disc-on-rod antenna is analyzed as a traveling wave antenna. The propogation characteristics along the rod are predicted by modal matching, including the effect of space harmonics. The analysis is confirmed by an open resonant cavity experiment. A parametric study shows that the ratio of the inner to the outer radius is the most important factor in controlling the phase velocity of waves along the disc on rod. The far field radiation patterns are predicted by Fourier transforming the aperture fields. This enables the variation with frequency of the copolar beamwidth and the peak cross-polar power to be studied.
- Publication:
-
Radio Science
- Pub Date:
- December 1984
- DOI:
- 10.1029/RS019i006p01439
- Bibcode:
- 1984RaSc...19.1439O
- Keywords:
-
- Antenna Design;
- Antenna Radiation Patterns;
- Far Fields;
- Microwave Antennas;
- Traveling Waves;
- Design Analysis;
- Disks (Shapes);
- Fourier Transformation;
- Harmonic Analysis;
- Microwave Transmission;
- Phase Velocity;
- Rods