Multiple antennae arrangements coupled via a power divider...

Details Multiple antennae arrangements coupled via a power divider... Multiple antennae arrangements coupled via a power divider...

H - Electricity

01

Q

351/19

H01Q 3/36 (2006.01) H01Q 3/26 (2006.01) H04B 7/08 (2006.01)

Patent

CA 1146668

ABSTRACT OF THE INVENTION "MULTIPLE ANTENNAE ARRANGEMENTS COUPLED VIA A POWER DIVIDER TO PROVIDE DIRECTIONAL AND/OR OMNIDIRECTIONAL CHARACTERISTICS" The invention relates to a multiple antennae arrangement composed of at least two antennae (A1, A2) and providing directional and/or omnidirectional characteristics, the antennae being fed via a common power dividing junction (1), in particular for use in a mobile radio system comprising two directional antennae arranged mutually back to back. A radiation characteristic which is substantially free of zero-points is produced by means of a controllable phase shift device (2) which is arranged in the feed path of an antenna and which is controlled in such manner that the interference pattern is changed to give the required radiation characteristic.

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