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Multiple beam feed networks using an even number of beam ports

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1 Author(s)
Winter, C.F. ; Raytheon Co., Wayland, MA, USA

An aperture illumination compatible with the use of an even number of adjacent beam ports in a multiple beam feed network is discussed. The antenna pattern characteristics of near-in sidelobe levels, half-power beamwidth, aperture efficiency, and feed network loss are evaluated. Maximization of the available antenna gain at adjacent beam crossover points is shown to be possible for either sequential or simultaneons operation of a receiving system. The results presented indicate that lossy feed networks are quite suitable for certain array antenna applications.

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Antennas and Propagation, IEEE Transactions on  (Volume:28 ,  Issue: 2 )