Tri-Polarized Antenna For Multiple Input Multiple Output (MIMO) System

Mohd Yusoff, Nur Hidayah (2018) Tri-Polarized Antenna For Multiple Input Multiple Output (MIMO) System. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

Text (24 Pages) Tri-Polarized Antenna For Multiple Input Multiple Output (MIMO) System.pdf - Submitted Version Download (1MB)

Abstract

In recent years,wireless communication system such as radar,navigation system,video conferencing,medical application and others has been widely developed. Regardless of the application,most of the modern wireless communication systems require high data rate and channel capacity.With these provocations,Multiple Input Multiple Output (MIMO) system was introduced to provide efficient performance and combat multipath effect.The objective of this project was to study tri-polarized antenna for wireless MIMO communication system,design,simulate and fabricated a tri-polarized antenna that operates at frequency 2.4GHz and analyze the performance of the designed antenna.First of all,single polarizations for linear polarized (Design A) and circular polarized antennas (Design B) were designed.Lastly,a compact tri-polarized antenna (Design C) was designed with a combination of three different polarizations;including linear polarization,left-handed circular polarization (LHCP) and right-handed circular polarization (RHCP).All the antenna designs were simulated by using Computer Simulation Technology (CST) software.Single-polarized antenna, circular polarized antenna and tri-polarized antenna were successfully designed and achieved design specifications.Based on the simulation and measurement results, the designed antennas covered frequency of 2.4GHz with reflection coefficient below -10dB.The simulated bandwidths of the designed antenna were more than 200MHz for the tri-polarized specification.Overall, all the antenna specification of compact tri-polarized antenna showed good responses.The measurement results were almost similar to the simulation results.Therefore, this tri-polarized antenna that is capable of performing in three different polarizations is suitable to be applied in MIMO system that requires polarization diversity.

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