Title:
METHOD AND APPARATUS FOR A DISTRIBUTED BASE STATION ANTENNA SYSTEM
Document Type and Number:
WIPO Patent Application WO1999044297
Kind Code:
A3
Abstract:
A multiple access radio communication system sends IF signals from individual radio modules (29) to separate dedicated antenna modules (77) in an antenna apparatus. Each antenna module (77) is dedicated to one radio module (29), and has RF circuitry for converting the frequency of the IF signals from the associated radio module (29). In a preferred embodiment an antenna module (77) has a radiating element mounted at a right angle to a reflecting base plate, and the RF circuitry for the associated antenna and radio module (29) is on a circuit board mounted parallel to the base plate opposite the radiating element. Antenna modules (77) may be stacked in vertical arrays, and vertical stacks may be arranged in different outwardly sector-radiating arrays. Also in a preferred embodiment, timing signals and power are provided to the RF circuitry at the antenna modules (77) on the respective coaxial cables (33, 35, 37, 39) serving each module.
Inventors:
COLE JEAN PIERRE JOSEPH
Application Number:
PCT/US1999/003794
Publication Date:
February 17, 2000
Filing Date:
February 22, 1999
Export Citation:
Assignee:
ADICOM WIRELESS INC (US)
International Classes:
H01Q1/24; H01Q9/28; H01Q21/00; H01Q21/08; H01Q23/00; (IPC1-7): H04Q7/30
Foreign References:
US5963874A | 1999-10-05 | |||
US5854986A | 1998-12-29 | |||
US5752200A | 1998-05-12 | |||
US5548813A | 1996-08-20 | |||
US5530409A | 1996-06-25 | |||
US4592093A | 1986-05-27 | |||
US4211894A | 1980-07-08 |
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