Broad Bandwidth Microstrip Patch Antenna For Cellular Base Station

Student: Fook Hong Lor

Supervisor: Marek Bialkowski

Category: Engineering Thesis Project - Communications

The ever-increasing growth in wireless communication has resulted in demand for better network coverage and capacity. In order to meet these demands, more base stations and antennas were put up on buildings and communication towers.

Base station antennas that are made up of conventional dipole or bowtie elements are usually bulky in size. With more of these antennas being put up on buildings, the asthetic appearance of these buildings is adversely affected. This problem has led to the development of low-profile microstrip patch antennas for base stations. As compared to conventional dipole antennas, microstrip patch antennas are much more desirable in terms of lower-profile, lower-cost, less-weight and ease of fabrication. However the major limitation of microstrip patch antenna is its inherently narrow bandwidth (2%~4%).

The purpose of this project is to design a broad bandwidth microstrip patch antenna for use with the IMT-2000 network. The design of this antenna would consist of an array of 4 elements and the use of the L-shape probe fed technique to achieve a broad bandwidth of greater than 20%. A CAD(Computer Aided Design)software package known as FEKO will be used to design the antenna.

Thesis Document (PDF)

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