Patent ID: 7839351

Claim:
A two-port electromagnetic signal broadcasting antenna, comprising: a first radiating element comprising: four discrete conductive loops; and at least one tuning barb, conductively attached to at least one of the four discrete conductive loops, electrically and chemically compatible with the structure of the loop to which the tuning barb is attached; a hybrid coupler having a first unbalanced input port and a second unbalanced input port, and having a first balanced output port and a second balanced output port, wherein the respective balanced output ports have respective output signal conductor arrangements configured to supply substantially equal and opposite signals from the hybrid coupler to a balanced load; and electrical connections between the first radiating element and the respective output signal conductors of the hybrid coupler, wherein points of connection between the first radiating element and conductors are substantially symmetric about the rotational axis of symmetry of the first radiating element arrangement.