Prediction and performance of radome-covered reflector antennas
Article first published online: 7 DEC 2012
Copyright 1981 by the American Geophysical Union.
Volume 16, Issue 6, pages 1105–1110, November-December 1981
How to Cite
1981), Prediction and performance of radome-covered reflector antennas, Radio Sci., 16(6), 1105–1110, doi:10.1029/RS016i006p01105., , and (
- Issue published online: 7 DEC 2012
- Article first published online: 7 DEC 2012
- Manuscript Accepted: 25 FEB 1981
- Manuscript Received: 31 OCT 1980
The return loss (reflection coefficient) of a paraboloidal reflector antenna covered by a paraboloidal radome is predicted using a physical-optics method based on the power-coupling theorem. An asymptotic form of the expression is found to be a good approximation. The performance of the antenna has been measured and results are in good agreement with those predicted theoretically. A method for reducing the return loss is investigated using a hemispherical iris-loaded sandwich section at the center of the radome. An improvement in return loss of approximately 5 dB is observed over a useful frequency bandwidth. Contributions of the radome to the radiation pattern of the antenna have been identified and those near to boresight have been predicted. Computed values in that region agree well with measurements.