Multiple phase center feedhorn for reflector antenna

Details Multiple phase center feedhorn for reflector antenna Multiple phase center feedhorn for reflector antenna

2007-02-20

2007-02-20

Ho, Tan (Department: 2821)

Communications: radio wave antennas

Antennas

Wave guide type

Reexamination Certificate

active

10869844

ABSTRACT:
A feedhorn driving method and apparatus allows the establishment of multiple phase centers using only a single multimode feedhorn. At least two higher-order modes are extracted from the feedhorn and weighted in amplitude and phase. The phase center separation is established in accordance with an assigned weights. The feedhorn has application in i.a. moving target indication systems.

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Damini et al; “Novel multiple phase centre reflector antenna for GMTI radar”; IEE Proc., Antennas Propag.; vol. 151, No. 3, Jun. 2004; pp. 199-204.

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