Patent ID: 6064347
Filing Date: 2000-05-16
Classification: H01Q

Abstract:
A top-loaded, vertically polarized antenna having two input feed points comprised of:a) ground plane means for providing an electrical reference potential for signals received and transmitted by said antenna;b) shorting post means, affixed substantially orthogonal to said ground plane means, for supporting electronic elements to electrically load said antenna;c) a first antenna loading means for providing top loading and for providing a first resonant frequency for said antenna, wherein said first antenna loading means is comprised of a strip of conductive material of a predetermined length and width formed into a substantially rectangular ring, lying substantially in a plane, having a first end affixed to said shorting post means, having a second end forming a capacitance with respect to said shorting post means;d) a second antenna loading means for providing top loading and for providing a second resonant frequency for said antenna;e) a first input means for coupling electrical signals to and from said first antenna loading means; andf) a second input means for coupling electrical signals to and from said second antenna loading means.