Communications: directive radio wave systems and devices (e.g. – Directive – Including a steerable array
Patent
1998-04-29
2000-10-03
Tarcza, Thomas H.
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a steerable array
342367, 342372, 455 134, H01Q 326
Patent
active
061279722
ABSTRACT:
In a base station for providing wireless cellular service, an antenna arrangement is employed to transmit information to Mobile terminals, e.g., cellular radiotelephones, in a cell. The cell is divided into sectors. The antenna arrangement includes a number of antennas, each of which is used to serve one or more of the sectors. However, transmission of an antenna to a sector corresponding thereto is interfered by transmissions of other antennas to their corresponding sectors. To reduce such inter-sector interference in each sector, each antenna is designed to maximize beam efficiency of the sector, which is defined as a ratio of the power transmitted to the sector by the corresponding antenna to the total power radiated from the antenna.
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Avidor Dan
Sabharwal Ashutosh
Lucent Technologies - Inc.
Phan Dao L.
Tarcza Thomas H.
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