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Inverted diamond-shaped notched substrate and patch for high-frequency interference on ultra-wideband antenna

Abdulhasan, Raed Abdulkareem and Ramli, Khairun Nidzam and Alias, Rozlan and Audah, Lukman and Omar Mumin, Abdul Rashid (2017) Inverted diamond-shaped notched substrate and patch for high-frequency interference on ultra-wideband antenna. International Journal of Electrical and Computer Engineering (IJECE), 7 (6). pp. 2929-2935. ISSN 20888708

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Abstract

Notches loaded on a patch antenna can affect significantly on the antenna impedance matching. Therefore, notching technique is an efficient way to reduce the electromagnetic interference with unwanted bands. In this paper, a novel inverted diamond - shaped closed-end slot on a substrate and vertex-fed printed hexagonal patch ultra- wideband antenna is proposed for high-frequency band rejection. This antenna is fed using coplanar waveguide, and it is optimised by veering several patch parameters which further improved the inter bandwidth at both the lower and upper bands. However, the centre-notched band is shifted from 6GHz to 7.5GHz by cutting the inverted diamond shape in a special process. The developed ultra-wideband antenna is verified by comparing the simulation results with the measurement results. The measured results with a fractional bandwidth of 133% have a good agreement with the simulation results 146%. Moreover, the measured radiation showed omnidirectional patterns .

Item Type: Article
Uncontrolled Keywords: Coplanar waveguide CPW; cut substrate; diamond-slot; hexagonal UWB antenna; high-frequency rejection
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101-5865 Telecommunication. Telegraph.
Divisions: Faculty of Electrical and Electronic Engineering > Department of Communication Engineering
Depositing User: Mr. Mohammad Shaifulrip Ithnin
Date Deposited: 31 Oct 2019 02:38
Last Modified: 31 Oct 2019 02:38
URI: http://eprints.uthm.edu.my/id/eprint/11807
Statistic Details: View Download Statistic

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