DROOPY BOWTIE RADIATOR WITH INTEGRATED BALUN

摘要

An antenna element (10) and a quad- line balun column (12) are described. The antenna includes a plurality of droopy bowtie antenna elements (10) disposed on dielectric block (16) and a feed point. The quad-line balun column (12) includes a central member having dielectric slabs symmetrically disposed on external surfaces thereof. At least one end of the balun is provided having a shape such that conductors on the dielectric slabs of the balun can be coupled to the droopy bowtie antenna elements. The quad- line balun column is mechanically stable facilitates the assembly, and provides coincident phase centres for orthogonal dipoles. Thze antenna element provides broad bandwidth, high cross -polarization isolation characteristic and is mechanically stable.