Diversity antenna apparatus and method

Details Diversity antenna apparatus and method Diversity antenna apparatus and method

H - Electricity

04

B

H04B 7/04 (2006.01) H01Q 21/00 (2006.01)

Patent

CA 2353154

A diversity antenna apparatus and method adaptable for use with communication equipment is provided which can assure an acceptable transmission and/or reception condition in three principal dimensional (X,Y,Z) directions. The diversity antenna apparatus may comprise a plurality of antennae for transmitting and/or receiving a circularly polarized wave and an antenna selection circuit which selects one of the antennae for transmission and/or reception based on information representative of reception levels of the antennae, A first group of the antennae may provide a first substantially semispherical radiation pattern and a second group of the antennae may provide a second substantially semi spherical radiation pattern such that the first and second groups of antennae as a whole provide a substantially spherical radiation pattern.

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