Title :
Gain and Aperture Efficiency for a Reflector Antenna With an Array Feed
Author :
Warnick, Karl F. ; Jeffs, Brian D.
Abstract :
A figure of merit for array antennas can be defined using the signal processing concept of signal-to-noise ratio (SNR) gain. The resulting array efficiency metric reduces to aperture efficiency for an isolated array and to a combination of aperture and spillover efficiency for an array feed. These results provide a practical way to measure aperture efficiency for active arrays and array feeds.
Keywords :
Antenna arrays; Antenna feeds; Antenna measurements; Aperture antennas; Array signal processing; Helium; Jacobian matrices; Reflector antennas; Signal to noise ratio; Working environment noise; active arrays; antenna array feeds; aperture efficiency; array gain; gain;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2006.886308
