Multichannel stripline balun

A balun for blocking induced radio frequency current on ground conductors of a multi-layer signal carrier, the signal carrier including alternating signal conductors and the ground conductors, the balun comprising:

• capacitive circuits disposed on first and second sides of the signal carrier;
• conductors disposed on first and second sides of the signal carrier and coupled to the capacitive circuits;
• vias extending through the signal carrier;
• and
• conductive material disposed in the vias electrically coupling the conductors on the first side of the signal carrier to conductors on the second side of the signal carrier and to the ground conductors to establish a capacitive/inductive network.

A magnetic resonance system comprising:

• a radio frequency coil configured to receive radio frequency emissions from a subject and to generate signals based upon the received emissions;
• a signal processing circuit for receiving the signals;
• an interface circuit disposed between the radio frequency coil and the signal processing circuit, the interface circuit comprising a signal carrier portion having alternating embedded signal conductors and ground conductors;
• and
• a balun for blocking induced radio frequency current flowing on the ground conductors in the signal carrier portion, the balun including circuits disposed on first and second sides of the signal carrier portion, conductors disposed on first and second sides of the signal carrier portion and coupled to the capacitive circuits, vias extending through the signal carrier portion, and conductive material disposed in the vias electrically coupling the conductors on the first side of the signal carrier portion to conductors on the second side of the signal carrier portion and to the ground conductors to establish a capacitive/inductive network.