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Multiple-beam dual-offset reflector antenna with an array feed

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3 Author(s)
Bird, T.S. ; Queen Mary College, Department of Electrical and Electronic Engineering, London, UK ; Boomars, J.L. ; Clarricoats, P.J.B.

A computer simulation is described for the production of multiple beams by a dual-offset reflector antenna with a feed consisting of a circular waveguide array. It is shown that acceptable efficiencies and low crosspolar levels can be achieved for two sample beams of a multibeam configuration by deriving the array excitation from the focal-region fields of the double-offset antenna.

Published in:

Electronics Letters  (Volume:14 ,  Issue: 14 )