Patent ID: 7167137
Filing Date: 2007-01-23
Classification: H01Q

Abstract:
1. In a discone antenna having a skeleton cone including a number of separate conductive members extending from the apex of the cone, a method for eliminating ground effects that detune said antenna when said antenna is deployed adjacent the ground, comprising the step of: providing a peripheral ring electrically attached to the distal ends of the conductive members of the discone antenna so as to electrically interconnect the distal ends, the peripheral ring minimizing ground effects that detune a discone antenna adjacent the ground, the discone antenna being a wide bandwidth discone antenna, and comprising a circular disc; a frusto conical cone in the form of a skeleton having elongated straight conductive members extending from the apex of the cone in a conical configuration, said apex spaced from said disc; and localized meander line stubs interposed in said conductive members so as to prevent high frequency signals from going past the point at which the localized meander line is interposed, the meander line acting as a loading inductor on the lower frequencies, whereby the low frequency cutoff of said antenna is decreased over a similarly sized antenna without said stubs.