Patent ID: 8207902
Filing Date: 2012-06-26
Classification: H01Q

Abstract:
1. A broadband cage antenna about a conductive mast of a vessel, comprising: a first plurality of wires aligned in a substantially vertical orientation and arranged circumferentially around the mast; a second plurality of wires aligned in a substantially horizontal orientation and placed around the mast, a first wire of the second plurality of wires joining, near a top portion of the mast, all the first plurality of wires, and wherein the first wire forms a ring around the mast such that the ring extends through a loop formed by the inter-connection of the mast, a top yard arm, and a supporting member of the top yard arm, and a second wire of the second plurality of wires joining, near a bottom portion of the mast, all the first plurality of wires; and an antenna feed coupled to the second wire of the second plurality of wires, wherein the first and second plurality of wires are electrically insulated from the mast, to form a broadband antenna having a VSWR response of less than 4 over a designated frequency range.