Receiving antenna for multibeam coverage
First Claim
1. Receiving antenna for multispot coverage, comprising at least one focusing reflector (34, 44, 100) and one focal array (30, 110) of individual sources (31) disposed in the focal area of said focusing reflector (34, 44, 100), characterized in that said sources (31) are substantially contiguous and disposed on a concave and approximately spherical surface S.
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Accused Products
Abstract
The invention relates to a receiving antenna for satellite telecommunications. More specifically, the invention relates to an active antenna comprising a network of elementary sources which is positioned at the focal point of a focusing reflector. According to the invention, said network of sources is disposed on a more or less spherical, concave surface S. The aforementioned arrangement can be used to: (i) improve the efficiency of the optics and (ii) enable the use of polarisation duplexers behind surface S in order to increase the spectral efficiency of the antenna.
22 Citations
10 Claims
- 1. Receiving antenna for multispot coverage, comprising at least one focusing reflector (34, 44, 100) and one focal array (30, 110) of individual sources (31) disposed in the focal area of said focusing reflector (34, 44, 100), characterized in that said sources (31) are substantially contiguous and disposed on a concave and approximately spherical surface S.
Specification