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Inverted koch fractal dual band dipole antenna with harmonic suppression capability

Suleiman, Khaled Bennour (2015) Inverted koch fractal dual band dipole antenna with harmonic suppression capability. Masters thesis, Universiti Tun Hussein Onn Malaysia.

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Abstract

Mobile telecommunication is certainly one of the major breakthroughs of this millennium. Fractal antenna is an essential for modern telecommunication technology for more effective implementation. Koch fractal dual band dipole antenna that is integrated with the Defected Ground Structure (DGS) and tapered balun has been designed and experimentally validated in this project. The Koch dipoles are double-sided structure while the tapered balun is triangular with linear transition. The Koch fractal geometry has been used to reduce the length of main dipole arms. This antenna is capable to operate for Global System for Mobile Communication (GSM) at 900 MHz as well as for Wireless Local Area Network (WLAN) at 2.4 GHz by using Computer Simulation Technology (CST) software. The harmonic frequencies which are 3.6 GHz and 4.7 GHz were eliminated by the used DGS. The properties of antennas such as return loss, S11, bandwidth, VSWR, gain, current distribution and radiation pattern have been investigated through simulation and measurement. The developed antenna can reduce the size of the conventional dipole antenna and electromagnetic interference and provide other additional characteristic for multiband antenna. Hence, the aim of this project has been achieved.

Item Type: Thesis (Masters)
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101-5865 Telecommunication. Telegraph.
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800-8360 Electronics
Depositing User: Normajihan Abd. Rahman
Date Deposited: 13 Mar 2016 07:52
Last Modified: 13 Mar 2016 07:52
URI: http://eprints.uthm.edu.my/id/eprint/7721
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