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Effects of dielectric substrate on performance of UWB Archimedean Spiral Antenna

Shire, A. M. and Che Seman, Fauziahanim (2013) Effects of dielectric substrate on performance of UWB Archimedean Spiral Antenna. In: 2013 IEEE International Conference on Space Science & Communication (IconSpace), 1-3 July 2013, Melaka, Malaysia.


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This paper presents the design of the Archimedean Spiral Antennas (ASA) backed by a metal plate. The dimension of the spiral arm was designed to operate between 3.1 – 10.6 GHz and different permittivity of the dielectric substrate was employed between the spiral arm and the backing plate with specified electrical thickness of λg/4 at the lowest frequency range. The CST simulated results shows that when the dielectric permittivity, ε r increases, the performance of the ASA in terms of return loss, axial ratio, efficiency, pattern and gain deteriorates.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: component; ASA; Backing Plate; UWB
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: 29 Aug 2013 08:14
Last Modified: 21 Jan 2015 08:20
URI: http://eprints.uthm.edu.my/id/eprint/4136
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