EtherHelix™ series of GPS Quad Helix Isolated Magnetic Dipole™ (IMD) antennas deliver on the key needs of device designers for higher functionality and performance in the worlds smallest Stand alone Circular polarized external and internal designs. These innovative antennas provide compelling advantages for GPS enabled cell phones, navigation equipment, and other mobile devices. Real-World Performance and Implementation Antennas may look alike on the outside, but the important difference is inside. Other antennas may contain simple PIFA or monopole patch designs that inter-act with their surroundings, complicating component layout or changing performance with use position. These antennas utilize patented IMD technology to deliver a unique size and performance combination.