Abstract: The present invention relates to a series fed collinear antenna which includes cone-shaped radiating elements energized via a series fed common transmission line. Phasing stubs are provided between selected radiating elements and are oriented such that the phasing stub improves gain and reliability by affecting the signal to produce a beneficial elevational coordinate signal pattern. A ground plane may be provided proximate the lower end of the antenna structure to further enhance the radiated signal. The ground plane may be formed in the shape of a dome having an apex vertically disposed above a rim.

Abstract: The present invention relates to a series fed collinear antenna which includes cone-shaped radiating elements energized via a series fed common transmission line. Phasing stubs are provided between selected radiating elements and are oriented such that the phasing stub improves gain and reliability by affecting the signal to produce a beneficial elevational coordinate signal pattern. The radiating elements may be cones. Each cone has an associated base diameter. The base diameter may be uniform, resulting in similarly sized cones, or a cone may have a distinct base diameter resulting in differently sized cone elements.

Abstract: The present invention relates to a series fed collinear antenna which includes cone-shaped radiating elements energized via a series fed common transmission line. Phasing stubs are provided between selected radiating elements and are oriented such that the phasing stub improves gain and reliability by affecting the signal to produce a beneficial elevational coordinate signal pattern. A ground plane may be provided proximate the lower end of the antenna structure to further enhance the radiated signal. The ground plane may be formed in the shape of a dome having an apex vertically disposed above a rim.