Universiti Teknologi Malaysia Institutional Repository

A comparison of fractal koch antenna for UHF band applications

Abdul Rahim, Mohammad Kamal and Karim, M. N. A. and Kamruddin, M. R. and Abdul Aziz, M. Z. A. (2010) A comparison of fractal koch antenna for UHF band applications. In: The 14th European Conference on Antennas and Propagation (EUCAP'2010), 12-16 April 2010, Barcelona, Spain.

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Abstract

The design of Log Periodic Fractal Koch Antennas (LPFKA) for Ultra High Frequency (UHF) band applications for three different iterations is discussed in this paper. A size reduction is achieved by using Fractal Koch technique. In this works, 0th, 1st and series iteration have been applied to the antennas and the performances of the antennas have been discussed. The antennas have been designed and simulated using Computer Simulation Technology (CST) software and fabricated using wet etching technique. The Flame Retardant-4 (FR4) laminated boards which have dielectric constant 4.6 and tangent loss 0.019 have been used as a substrate material. The simulated and measured result in term of return loss, radiation patterns and current distribution are compared and analyzed. The results shows a good agreement for both simulated and measured and 26 % of size reductions of the antennas have been achieved without degraded the performance of the antennas.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:antenna for UHF band, LPFKA, CST,
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:23769
Deposited By: Liza Porijo
Deposited On:20 Sep 2012 03:26
Last Modified:20 Sep 2012 03:26

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