H - Electricity – 04 – B
Patent
H - Electricity
04
B
351/21, 325/42
H04B 7/02 (2006.01) H01Q 1/24 (2006.01) H01Q 3/24 (2006.01) H01Q 9/04 (2006.01) H01Q 25/00 (2006.01) H04B 7/08 (2006.01) H04B 7/10 (2006.01)
Patent
CA 1202086
TITLE OF THE INVENTION A Directivity Diversity Communication System ABSTRACT OF THE DISCLOSURE An improved diversity communication system which has a single micro-strip antenna has been found. The micro- strip antenna according to the invention comprises a thin dielectric layer sandwiched by a ground conductor plane and a radiation conductor plane, a pair of feed points on the radiation conductor plane through the holes on the ground conductor plane, and said feed points being posi- tioned so that a line between a first feed point and a center of the radiation conductor plane is substantially perpendicular to a line between a second feed point and a center of the radiation conductor plane. Each of the feed points is coupled with each branch input of a diversity receiver, and those feed points operate like separated two antennas, which have a pair of perpendicular directivities. Preferably, a radiation conductor plane is circular with a plurality of slots along the periphery of the same. The feed points of the present micro-strip antenna have little correlation between the same. The present invention is advantageous in particular for mobile communication as the size and/or the height of the antenna
410816
Borden Ladner Gervais Llp
Nippon Telegraph And Telephone Corporation
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