Antennas
AssigneeMbda UK Limited
InventorTimothy John Pritchard
Life of this patent
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Abstract
A reflector 38 includes a mirrored surface 48 and a frequency selective surface 46. The frequency selective surface 46 is arranged to reflect radiation of a first frequency band 52 and allow radiation of a second frequency band 50 to pass. The mirrored surface 48 is arranged to reflect radiation of the second frequency band 50. In this manner, the focal power for radiation of the first frequency band 52 is independent to the focal power for radiation of the second frequency band 50. Accordingly, the design of optical components associated with the second frequency band 50 can be undertaken independently of those associated with the first frequency band 52 so as to achieve the optimised focusing for each frequency band.
Claims12
A reflector, including:
- a mirrored surface;
- a frequency selective surface associated with the mirrored surface;
- wherein the frequency selective surface is arranged to reflect radiation of a first radio frequency band and allow radiation of a second frequency band to pass;
- and wherein the mirrored surface is arranged to reflect radiation of the second frequency band;
- thereby the focal power for radiation of the first radio frequency band is independent of the focal power for radiation of the second frequency band.
Dependencies are inferred from the claim text.