Patent ID: 6606077
Filing Date: 2003-08-12
Classification: H01Q

Abstract:
A multi-beam antenna, comprising:a. an electromagnetic lens, wherein said electromagnetic lens comprises a first portion and a second portion; b. at least one first antenna feed element, wherein said at least one first antenna feed element is adapted to cooperate with said first portion of said electromagnetic lens; c. at least one second antenna feed element, wherein said at least one second antenna feed element is adapted to cooperate with said second portion of said electromagnetic lens; and d. a selective element located between said first and second portions of said electromagnetic lens, wherein said selective element has a transmissivity and a reflectivity, said transmissivity and said reflectivity are responsive to an electromagnetic wave property, the transmissivity of said selective element is adapted so that a first electromagnetic wave having a first value of said electromagnetic wave property is substantially transmitted through said selective element so as to propagate in both said first and second portions of said electromagnetic lens, the reflectivity of said selective element is adapted so that a second electromagnetic wave having a second value of said electromagnetic wave property is substantially reflected by said selective element, said first electromagnetic wave cooperates with said at least one first antenna feed element, and said second electromagnetic wave cooperates with said at least one second antenna feed element.