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Analysis of variable dielectric substrate thickness of X-band square patch reflectarray antenna

Sulaiman, Noor Hafizah and Ismail, Muhammad Yusof (2011) Analysis of variable dielectric substrate thickness of X-band square patch reflectarray antenna. In: Malaysian Technical Universities International Conference on Engineering and Technology (MUiCET 2011), 13-15 November 2011, Batu Pahat, Johor.


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The analysis of square patch reflectarray antenna with different thicknesses of dielectric substrate is presented. The substrate thickness is varied froin 1.41 h,to 1.46 h, in order to investigate the effect of scattering parameter behavior on the reflection loss and reflection phase of reflectarray antenna design. It has been observed that by increasing the thiclcness of dielectric substrate, the improvement of bandwidth performance from 126.5 MHz to 635.4 MHz is achieved. The reflection loss is also reduced from 1.322dB to 0.144dB when the different thickness of dielectric substrate is varied from 0.381mm to 1.570mm. The maximum bandwidth performance of the different thicknesses used is obtained by using 1.570mm which offers the highest bandwidth of 635.4 MHz with the lowest reflection loss of 0.144dB. By increasing the thickness of dielectric substrate, 509 MHz improvement in the bandwidth performance is obtained. The performance of the antenna design based on the characteristics of reflection loss, reflection phase and Figure of Merit (FoM) for different thicknesses of dielectric material are discussed in this paper.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: reflectarray antenna; variable thicknesses of dielectric substrate; enhanced bandwidth
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800-8360 Electronics
Divisions: Faculty of Electrical and Electronic Engineering > Department of Communication Engineering
Depositing User: Normajihan Abd. Rahman
Date Deposited: 01 Apr 2015 05:38
Last Modified: 01 Apr 2015 05:38
URI: http://eprints.uthm.edu.my/id/eprint/6051
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