Radio paging system with antenna pattern exhibiting high diversi

Details Radio paging system with antenna pattern exhibiting high diversi Radio paging system with antenna pattern exhibiting high diversi

1995-08-14

1996-07-16

Eisenzopf, Reinhard J.

Telecommunications

Transmitter and receiver at separate stations

455 521, 455 65, H04Q 712

Patent

active

055376835

ABSTRACT:
A radio paging system includes one or more transmitters (12) for sending radio signals to pagers (14) within a paging service area (10). Receivers (22) are located within the service area to receive low power transmissions from the pagers. These receivers are coupled to omnidirectional antennas (24, 26) that are disposed in pairs to form a two branch diversity antenna system. Each pair of antennas is located in a cell that forms part of a four cell cluster (66), and each pair of antennas is located on an axis (42) running through its cell. The axes are selected to provide a high and uniform level of diversity gain throughout the cluster.

REFERENCES:
patent: 3906166 (1975-09-01), Cooper et al.
patent: 4128740 (1978-12-01), Graziano
patent: 5067173 (1991-11-01), Gordon et al.
patent: 5392451 (1995-02-01), Schwendeman et al.
Advanced Mobile Phone Service, The Cellular Concept by V. H. MacDonald, The Bell System Technical Journal, Jan. 1979, pp. 15-41.

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