Wireless backhaul power amplification using fourier...

Details Wireless backhaul power amplification using fourier... Wireless backhaul power amplification using fourier...

2011-06-21

2011-06-21

Nguyen, Lee (Department: 2618)

Telecommunications

Transmitter

Plural separate transmitters or channels

C455S127300, C330S126000, C333S109000

Reexamination Certificate

active

07965990

ABSTRACT:
An apparatus amplifies RF signals in a communication system by using a first directional coupler having at least two inputs and at least two outputs; at least two RF amplifiers, where an input of each RF amplifier is connected to a different one of the at least two outputs of the first directional coupler; and a second directional coupler having at least two inputs and at least two outputs, where each one of the at least two inputs is connected to an output of a different one of the at least two RF amplifiers. The at least two outputs of the second directional coupler are connected to at least two antennas, respectively.

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patent: 2007/0222512 (2007-09-01), Krishnamurthy et al.

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