Patent ID: 8199851

Claim:
A system for transmitting at least first, second, and third independent signals, the system comprising: a transmitter subsystem comprising a transmitter polarization module and a transmitter antenna, the transmitter polarization module having at least first, second, and third transmitter input ports, transmitter circuitry, and first and second transmitter output ports, the transmitter circuitry configured to receive the at least first, second and third independent signals from the transmitter input ports and to output first and second linear combinations of the at least first, second and third independent signals respectively on the first and second transmitter output ports, and the transmitter antenna configured to receive the first and second linear combinations from the first and second transmitter output ports, and further configured to transmit the first linear combination at a first polarization and to transmit the second linear combination at a second polarization orthogonal to the first polarization, wherein the transmitter circuitry comprises a first plurality of interconnected hybrid transformers disposed between and operably coupled to the at least first, second, and third transmitter input ports and the first and second output ports and configured to obtain the first and second linear combinations, wherein a first one of the hybrid transformers divides the first signal into first and second portions, and provides the first portion to the first output port and the second portion to the second output port, wherein the first one of the hybrid transformers places the first and second portions out of phase with one another.