Patent ID: 8654025

Claim:
A compact, omnidirectional, broadband antenna with a VSWR of 2:1 or less over its design frequency range, comprising: a first conical metal segment having its tip coincident with a horizontal plane, with an elevation angle between 23 degrees and 30 degrees from the horizontal plane; an open second conical metal segment joined to a distal end of the first conical metal segment, with an elevation angle approximately 30 degrees greater than the elevation angle of the first conical metal segment; an open third conical metal segment joined to a distal end of the open second conical metal segment, with an elevation angle approximately 30 degrees greater than the elevation angle of the open second conical metal segment; at least one of a plurality of inductors or resistors, or a resistive film joined to a distal end of the open third conical metal segment; an open fourth conical metal segment joined to a distal end of the plurality of inductors or resistors, or resistive film, with an elevation angle approximately equal to the elevation angle of the open third conical metal segment angle, wherein the first, second, third, and fourth conical metal segments are mirrored to form a biconical antenna; and a transmission line coupled to the tip of the first conical metal segment, interior to the first conical metal segment.