Linearly Polarized Omnidirectional Polarization-Diversity Dielectric Resonator Antenna

Abstract

A linearly polarized dielectric resonator (DR) antenna (DRA) with omnidirectional polarization diversity is presented in this paper. The dimensions of the DR should be chosen when the resonance frequencies of the TM01δand TE011+δmodes are the same. A circular patch with four short-circuited stubs are used to excite the TM mode without drilling any hole inside the DR. The TE mode is excited by four arc-shaped microstrip lines. A prototype was designed, fabricated, and measured. Good agreement can be observed between the simulated and measured results. The overlapping impedance bandwidth is measured as 8.1%. It should be mentioned that the proposed design is made of transparent glass, which could be easily integrated with optical applications.