Design Of Tri-Polarized Antenna

Chew, Sze Siang (2017) Design Of Tri-Polarized Antenna. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Nowadays,people demands for high quality communication system such as high-quality video call,voice call and data.In order to achieve that,Multiple-Input Multiple-Output (MIMO) system is a must as conventional communication such as Single-Input Single-Output (SISO) communication system is incapable of providing high transfer speed and high capacity.In order to exploit the potential of MIMO system to maximum,polarization diversity method is preferred where multiple polarization antenna is used to overcome the mutual coupling problem among the huge number of antennas.In this project,a tri-polarized antenna that operate at frequency 2.4GHz with a dual circular polarization and a linear polarization is proposed.Circuit Simulation Tool (CST) software is used to design and construct the designed antenna. Investigation on single polarized antennas are carried out first where different feeding methods such as orthogonal feed are used to achieve circular and linear polarization.A dual circular polarized antenna is then designed by combining two single polarized antenna in a single antenna structure with two independent ports to generate dual polarization.The final stage of this project is the combination of the dual circular-polarized antenna and a linear polarized antenna in single antenna structure to realize tri-polarization.

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