Patent ID: 7466670
Filing Date: 2008-12-16
Classification: H04B

Abstract:
1. A transmit system comprising: two receive inputs for receiving input power distributed between two weakly correlated signals, wherein a first signal of the weakly correlated signals is received on a first input of the two receive inputs and a second signal of the weakly correlated signals is received on a second input of the two receive inputs; a balanced amplifier system for dividing, amplifying, and recombining the two weakly correlated signals, the balanced amplifier comprises: a two antenna array having a first antenna element coupled to the first output of the combining circuit and a second antenna element coupled to the second output of the combining circuit for radiating the amplified signals; wherein the transmit system capable of switched operation between unicast and multicast transmissions; wherein the input power is distributed to the first signal is a·Pin and the input power distributed to the second signal is (1−a)·Pin; wherein in unicast mode a is greater than 0 and less than 1; wherein in multicast mode a is equal to 1; and wherein Pin is the total input power.