Antenna system

Details Antenna system Antenna system

2006-03-28

2006-03-28

Ho, Tan (Department: 2821)

Communications: radio wave antennas

Antennas

With coupling network or impedance in the leadin

C342S375000, C455S561000

Reexamination Certificate

active

07019710

ABSTRACT:
An antenna system for a transmitter, said antenna system comprising an array of antennas, said array being controllable to transmit a signal over part or all of a coverage area of said transmitter; an amplifier coupled to each antenna, said amplifier being arranged to receive one or more signals to be transmitted by the respective antenna; and a further amplifier connected to at least one of said antennas, said further amplifier arranged to receive a signal to be transmitted over substantially all of the coverage area of said transmitter.

REFERENCES:
patent: 5521904 (1996-05-01), Eriksson et al.
patent: 5532706 (1996-07-01), Reinhardt et al.
patent: 5956327 (1999-09-01), Faerber et al.
patent: 6043790 (2000-03-01), Derneryd et al.
patent: 6161024 (2000-12-01), Komara
patent: 6448938 (2002-09-01), Chiang et al.
patent: 6658269 (2003-12-01), Golemon et al.
patent: WO 97/41642 (1997-11-01), None

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