Aperture illumination control membrane

Details Aperture illumination control membrane Aperture illumination control membrane

2007-02-27

2007-02-27

Chen, Shih-Chao (Department: 2821)

Communications: radio wave antennas

Antennas

Wave guide type

C343S776000

Reexamination Certificate

active

11048824

ABSTRACT:
A device for modifying electromagnetic illumination of a reflector aperture defined by a reflector surface is mounted in front of the reflector aperture in a spaced apart relationship relative to the reflector surface. The device at least partially covers the reflector aperture and provides an illumination control means for at least partially and selectively modifying electromagnetic illumination of the reflector aperture. The device may include a membrane-like substrate that is substantially transparent to electromagnetic radiation. A supporting member may support the substrate in the spaced apart relationship relative to the reflector surface.

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