Title :
Beam efficiency of reflector antennas: the simple formula
Author :
Rahmat-Samii, Yahya ; Hoferer, R.A. ; Mosallaei, Hossein
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA
fDate :
10/1/1998 12:00:00 AM
Abstract :
Beam efficiency has proven to be an important measure for characterizing the performance of reflector antennas. In this paper, a simple formula is presented to allow for a quick estimate of the beam efficiency of reflector antennas. This estimate includes the effects of edge tapers, feed spillover, random surface errors, and central blockage. The application of this formula is detailed in a case study, and its accuracy is demonstrated in comparison with a numerical simulation using diffraction analysis
Keywords :
antenna radiation patterns; electromagnetic wave diffraction; reflector antennas; beam efficiency; central blockage; diffraction analysis; edge tapers; feed spillover; numerical simulation; performance; random surface errors; reflector antennas; Antenna feeds; Antenna measurements; Antennas and propagation; Aperture antennas; Energy capture; Equations; Power measurement; Reflector antennas; Scattering; Solid modeling;
Journal_Title :
Antennas and Propagation Magazine, IEEE
