Communications: radio wave antennas – Antennas – Antenna components
Patent
1999-09-08
2000-10-31
Ho, Tan
Communications: radio wave antennas
Antennas
Antenna components
343756, 343781P, H01Q 1502, H01Q 1900
Patent
active
061409782
ABSTRACT:
A spaceborne hybrid antenna reflector for dual frequency band illumination of common spot beam coverage regions contains an interior solid reflector region, that is adjacent at its perimeter to a ring-shaped exterior dichroic reflector region and adjoined by a common backing structure. The solid interior region is reflective to RF energy at each of first and second spaced apart frequency bands, while the exterior dichroic reflector region is reflective at the first frequency band, but non-reflective at the second frequency band. This allows the hybrid reflector to realize the same beamwidth coverage for a transmitter operating at one frequency band and a receiver operating at the other frequency band. The backing support frame at the rear side of the reflector is electrically decoupled from the exterior dichroic ring.
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Durham Timothy E.
Kralovec Jay A.
Patenaude Yves
Struttmann James D.
Taylor Robert C.
Harris Corporation
Ho Tan
LandOfFree
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