Showing papers on "Front-to-back ratio published in 1997"

Antenna having improved front-to-back ratio

Abstract: An antenna having improved front-to-back ratio, the antenna comprising a backplane (101), at least one driven antenna element (103) positioned on a forward side of the backplane, and first (102A) and second (102B) deflector plates disposed on opposing edges of the backplane, the first and second deflector plates extending rearwardly and outwardly from the opposing edges of the backplane (101) In another embodiment, an antenna having improved front-to-back ratio is disclosed in which the antenna comprises a first reflector backplane (101), at least one driven antenna element (108) positioned on a first side of the first reflector backplane, and a second reflector backplane (302) positioned on a second side of the first reflector backplane, wherein the second reflector backplane is fixed in substantially parallel relationship with respect to the first reflector backplane, and spaced away from the first reflector backplane