Patent ID: 9531083
Filing Date: 2016-12-27
CPC Classification: H01Q

Claim Text:
1. Group antenna comprising: a first radiator having a first radiator feed point; a second radiator having a second radiator feed point, the second radiator being spaced apart from the first radiator; a splitter or combiner; and a network configured for feeding the first and second radiators, the network comprising a first coaxial cable, which provides a first path between the splitter or combiner and the first radiator feed point and a second coaxial cable which provides a second path between the splitter or combiner and the second radiator feed point, wherein the first and second coaxial cables are connected in parallel to the splitter or combiner, the first coaxial cable comprising a first type of coaxial cable exhibiting a first phase velocity and the second coaxial cable comprising a second type of coaxial cable different from the first type of coaxial cable, the second type of coaxial cable exhibiting a second phase velocity different from the first phase velocity, the first coaxial cable exhibiting the first phase velocity over the first path, the second coaxial cable exhibiting the second phase velocity over the second path, the network being further configured to feed the first and second radiators with different phases, and at least one of the first and second coaxial cables having a low phase velocity at least over a sub-length in order to shorten the overall cable length between the splitter or combiner and the first or second radiator feed point.