Inverted koch fractal dual band dipole antenna with harmonic suppression capability
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 ta...
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| Format: | Thesis |
| Published: |
2015
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/7721/ http://eprints.uthm.edu.my/7721/1/KHALED_BENNOUR_._B._SULEIMAN.pdf |
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| Summary: | 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. |
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