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Small efficient axially symmetric dual reflector antennas

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3 Author(s)
D. C. Jenn ; US Naval Postgrad. Sch., Monterey, CA, USA ; N. Vered ; M. Ordonez

Two efficient small dual reflector antenna designs are analyzed using the method of moments. One is based on the standard Cassegrain system and the other is a displaced axis design. Both incorporate a low-blockage feed consisting of a dipole radiating in the presence of parasitic elements. In the first case, efficiencies greater than 55% were obtained for 20-wavelength main reflectors; in the second, an efficiency greater than 67% was achieved for a 22-wavelength main reflector

Published in:

IEEE Transactions on Antennas and Propagation  (Volume:41 ,  Issue: 1 )