Patent ID: 7705681

Claim:
An apparatus, comprising: an input terminal configured to receive an input signal; a network coupled to the input terminal and configured to provide a plurality of amplified input signals; and a directional coupler coupled to the network and comprising a through port, a coupled port and an isolated port coupled to the network and an output port coupled to an output terminal; wherein the network comprises: a first amplifier coupled between the input terminal and the through port of the directional coupler, the first amplifier comprising a first gain and an output for a first amplified input signal; a second amplifier coupled between the input terminal and the coupled port of the directional coupler, the second amplifier comprising a second gain and an output for a second amplified input signal; and a third amplifier coupled between the input terminal and the isolated port of the directional coupler, the third amplifier comprising a third gain and an output for a third amplified input signal.