H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 7/02 (2006.01) H04B 7/10 (2006.01)
Patent
CA 2582866
A wireless communications system is disclosed in which first and second base transceiver stations are connected to an antenna having first and second diversity characteristics and channels. First and second inputs of a first 90° or 180° combiner are fed the first characteristic of the first channel and a characteristic of the second channel and first and second inputs of the second combiner are fed the second characteristic of the first channel and a characteristic of the second channel opposite to that of the second input of the first combiner. Summation outputs of the first and second combiners are fed to main ports of the first and second stations and the difference outputs thereof are fed to diversity ports of the second and first stations. If the characteristic of the second input of a combiner is opposite to the characteristic of the first input, amplitude nulls may be significantly reduced.
Belcher Graham
Dean Stuart
Shapiro Cohen
Tenxc Wireless Inc.
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