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Symmetrical crossed rectangular horn for a circularly polarized multiple-beam reflector antenna

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1 Author(s)
Toyama, N. ; Tech. Research. Labs., Japan Broadcasting Corp., Tokyo Japan

Radiation characteristics of a symmetrical crossed rectangular horn using a solution of an integral eigenvalue equation given by Lin is described. E - and H -plane pattern symmetry and two-dimensional radiation patterns for circular polarization are studied comparing with those of a square horn, with specific emphasis on cross-polarization levels. Using a symmetrical crossed rectangular horn as a circularly polarized primary feed gain and cross-polarization characteristics of offset paraboloidal reflector antennas with circular and elliptical apertures have been investigated. A practical example of a circularly polarized multiple-beam antenna with contoured pattern using three symmetrical-crossed rectangular horns is shown.

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Antennas and Propagation, IEEE Transactions on  (Volume:31 ,  Issue: 1 )