Abstract

Singly-fed 45 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">°</sup> slant-polarized (SP) omnidirectional antennas without complex feed network are proposed in this letter. The antennas consist of a feeding probe that radiates monopolar omnidirectional vertically polarized (VP) fields and parasitic metallic/dielectric parallelepiped elements that convert omnidirectional VP fields into 45 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">°</sup> SP fields. Two prototypes with metallic and dielectric parallelepipeds operating in C-band were designed. The bandwidths of the SP metallic and dielectric antennas are given by 15.1% and 31.9%, respectively.

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