MULTI-BAND SATELLITE ANTENNA ASSEMBLY WITH DUAL FEEDS IN A COAXIAL RELATIONSHIP AND ASSOCIATED METHODS
First Claim
1. An antenna assembly comprising:
- a main reflector;
a subreflector spaced from said main reflector and comprising a frequency selective surface (FSS) material that is transmissive for a first frequency band and reflective for both a second frequency band and a third frequency band;
a first antenna feed adjacent said subreflector and directed toward said main reflector, said first antenna feed for the first frequency band; and
second and third antenna feeds arranged in a coaxial relationship adjacent said main reflector and directed toward said subreflector, said second and third antenna feeds for the second and third frequency bands, respectively.
7 Assignments
0 Petitions
Accused Products
Abstract
An antenna assembly includes a main reflector, and a subreflector spaced from the main reflector. The subreflector includes a frequency selective surface (FSS) material that is transmissive for a first frequency band and reflective for both a second frequency band and a third frequency band. A first antenna feed is adjacent the subreflector and is directed toward the main reflector. The first antenna feed is for the first frequency band. Second and third antenna feeds are arranged in a coaxial relationship adjacent the main reflector and are directed toward the subreflector. The second and third antenna feeds are for the second and third frequency bands, respectively.
11 Citations
33 Claims
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1. An antenna assembly comprising:
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a main reflector; a subreflector spaced from said main reflector and comprising a frequency selective surface (FSS) material that is transmissive for a first frequency band and reflective for both a second frequency band and a third frequency band; a first antenna feed adjacent said subreflector and directed toward said main reflector, said first antenna feed for the first frequency band; and second and third antenna feeds arranged in a coaxial relationship adjacent said main reflector and directed toward said subreflector, said second and third antenna feeds for the second and third frequency bands, respectively. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An antenna assembly comprising:
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a main reflector; a subreflector spaced from said main reflector and comprising a frequency selective surface (FSS) material that is transmissive for a first frequency band and reflective for both a second frequency band and a third frequency band; a first antenna feed adjacent said subreflector and directed toward said main reflector, said first antenna feed for the first frequency band; and second and third antenna feeds arranged in a coaxial relationship adjacent said main reflector and directed toward said subreflector, said second and third antenna feeds for the second and third frequency bands, respectively; said first, second and third antenna feeds being simultaneously operable; the first frequency band comprising the Ka frequency band, the second frequency band comprising the Ku band, and the third frequency band comprising the C band. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method for making an antenna assembly comprising:
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positioning a subreflector spaced from a main reflector, the subreflector comprising a frequency selective surface (FSS) material that is transmissive for a first frequency band and reflective for both a second frequency band and a third frequency band; positioning a first antenna feed so as to be directed toward the main reflector, with the first antenna feed adjacent the subreflector, the first antenna feed for the first frequency band; and positioning second and third antenna feeds arranged in a coaxial relationship adjacent the main reflector so as to be directed toward said subreflector, the second and third antenna feeds for the second and third frequency bands, respectively. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification