Study of broadband planar dual-polarization antennas for wireless communications

Abstract

In this Thesis, designs of stacked planar elements and arrays (1x2 and 2x2) with dual-linear polarization characteristics were presented. The antennas satisfy the requirements for a base station antenna and capable of having a broad bandwidth for the VSWR <= 1.5. The radiation patterns exhibit dual-linear polarization characteristics with high front-to-back radiation ratios. The diversity performance of a two-port dual-linear polarization antenna has been analyzed for the stacked and gap-coupled configurations. The analysis is based on important parameters such as the far-field coupling, output power correlation, and the diversity gain, which were computed using the amplitudes of radiation patterns.