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Inverted Diamond-shaped Notched Substrate and Patch for High-frequency Interference on Ultra-wideband Antenna

International Journal of Electrical and Computer Engineering (IJECE) · Vol. 7 No. 6 (2017)

DOI
10.11591/ijece.v7i6.pp2929-2935
ISSN
2088-8708, 2088-8708
Published
2017-12-01
Publisher
Institute of Advanced Engineering and Science
License
creativecommons.org/licenses/by-nc/4.0

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 6 GHz to 7.5 GHz 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 ‎.

Collaboration network of the authors

36 authors · 101 co-authorship links · 50 across different organisations

Hover or tap a name to highlight its co-authors. Double-click to open the author's page.

  • Tun Hussein Onn University of Malaysia
  • National University of Malaysia
  • University of Basrah
  • University of Surrey
  • Iraq University College
  • Universiti Teknikal Malaysia Melaka
  • Al-Nisour University
  • Other organisations
  • Affiliation unknown
  • Different organisations
  • Same organisation
  • Affiliation unknown
  • Thicker line = more joint articles · bigger circle = more articles
Show as table
Co-authorOrganisationJoint articles
Nor Shahida Mohd ShahTun Hussein Onn University of Malaysia2
Adeeb SalhTun Hussein Onn University of Malaysia2
Shipun Anuar Hamzah‏Tun Hussein Onn University of Malaysia2
Sameer AlaniUniversiti Teknikal Malaysia Melaka2
Sami Abduljabbar RashidTun Hussein Onn University of Malaysia2
Mustafa Maad HamdiTun Hussein Onn University of Malaysia2
Nur Rabiul Liyana MohamedTun Hussein Onn University of Malaysia1
Ansar JamilTun Hussein Onn University of Malaysia1
Lukman Hanif Muhammad AudahTun Hussein Onn University of Malaysia1
Jiwa AbdullahTun Hussein Onn University of Malaysia1
Zhili SunUniversity of Surrey1
Haitham S. CruickshankUniversity of Surrey1
Hamzah Hadi QasimTun Hussein Onn University of Malaysia1
A. E. HamzaTun Hussein Onn University of Malaysia1
Husam Hamid IbrahimTun Hussein Onn University of Malaysia1
Sara Ali AlwashAl-Nisour University1
Mahmoud Muhanad FadhelNational University of Malaysia1
O. S. HamedNational University of Malaysia1
M. I. HamzaUniversity of Basrah1
H. A. SaeedTun Hussein Onn University of Malaysia1
Mohammed Hasan AlwanTun Hussein Onn University of Malaysia1
Yasir Amer Al-JawherAffiliation unknown1
Aws Zuhair SameenNational University of Malaysia1
Hussain Falih MahdiNational University of Malaysia1
Mohammed Salah AboodBeijing Institute of Technology1
Abdulkarem Basil AbdulkaremUniversity of Al Maarif1
Abdulmuttalib Turky RashidUniversity of Basrah1
Ola A. HasanUniversity of Basrah1
Ramzy Salim AliUniversity of Basrah1
Hamza H. QasimIraq University College1
Mustafa A. Al SibaheeIraq University College1

Affiliations come from OpenAlex; journal OAI-PMH metadata carries none. Authors without an OpenAlex ID are matched by name, which can merge or split people.

This record comes from Crossref (what the publisher deposited), because the journal's own OAI-PMH endpoint could not be harvested.

Metadata source: Crossref API (cadangan, berdasarkan ISSN) https://api.crossref.org/journals/2088-8708/works, first harvested 27 Okt 2026, last seen 27 Okt 2026.
Metadata as oai_dc, converted from Crossref 
<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"><dc:title>Inverted Diamond-shaped Notched Substrate and Patch for High-frequency Interference on Ultra-wideband Antenna</dc:title><dc:creator>Abdulhasan, Raed Abdulkareem</dc:creator><dc:creator>Ramli, Khairun Nidzam</dc:creator><dc:creator>Alias, Rozlan</dc:creator><dc:creator>Audah, Lukman</dc:creator><dc:creator>Mumin, Abdul Rashid Omar</dc:creator><dc:description>&lt;jats:p&gt;&amp;lt;span&amp;gt;Notches loaded on a patch antenna can affect significantly on &amp;lt;/span&amp;gt;&amp;lt;em&amp;gt;&amp;lt;span lang="AR-SA"&amp;gt;‎&amp;lt;/span&amp;gt;&amp;lt;/em&amp;gt;&amp;lt;span&amp;gt;the antenna impedance matching. Therefore, notching technique is an efficient way to reduce &amp;lt;/span&amp;gt;&amp;lt;em&amp;gt;&amp;lt;span lang="AR-SA"&amp;gt;‎&amp;lt;/span&amp;gt;&amp;lt;/em&amp;gt;&amp;lt;span&amp;gt;the electromagnetic interference with unwanted bands. In this paper, a &amp;lt;/span&amp;gt;&amp;lt;em&amp;gt;&amp;lt;span lang="AR-SA"&amp;gt;‎&amp;lt;/span&amp;gt;&amp;lt;/em&amp;gt;&amp;lt;span&amp;gt;novel inverted diamond&amp;lt;/span&amp;gt;&amp;lt;em&amp;gt;&amp;lt;span lang="AR-SA" dir="RTL"&amp;gt;‏-‏&amp;lt;/span&amp;gt;&amp;lt;/em&amp;gt;&amp;lt;span&amp;gt;shaped closed-end slot on a substrate and &amp;lt;/span&amp;gt;&amp;lt;em&amp;gt;&amp;lt;span lang="AR-SA"&amp;gt;‎&amp;lt;/span&amp;gt;&amp;lt;/em&amp;gt;&amp;lt;span&amp;gt;vertex-fed printed hexagonal patch ultra&amp;lt;/span&amp;gt;&amp;lt;em&amp;gt;&amp;lt;span lang="AR-SA" dir="RTL"&amp;gt;‏-‏&amp;lt;/span&amp;gt;&amp;lt;/em&amp;gt;&amp;lt;span&amp;gt;wideband antenna is proposed for high-frequency band rejection. This antenna is fed using &amp;lt;/span&amp;gt;&amp;lt;em&amp;gt;&amp;lt;span lang="AR-SA"&amp;gt;‎&amp;lt;/span&amp;gt;&amp;lt;/em&amp;gt;&amp;lt;span&amp;gt;coplanar waveguide, and it is &amp;lt;/span&amp;gt;&amp;lt;span lang="EN-GB"&amp;gt;optimised&amp;lt;/span&amp;gt;&amp;lt;span&amp;gt; by veering several patch &amp;lt;/span&amp;gt;&amp;lt;em&amp;gt;&amp;lt;span lang="AR-SA"&amp;gt;‎&amp;lt;/span&amp;gt;&amp;lt;/em&amp;gt;&amp;lt;span&amp;gt;parameters which further improved the inter bandwidth at both the &amp;lt;/span&amp;gt;&amp;lt;em&amp;gt;&amp;lt;span lang="AR-SA"&amp;gt;‎&amp;lt;/span&amp;gt;&amp;lt;/em&amp;gt;&amp;lt;span&amp;gt;lower and upper bands. However, the centre-notched band is shifted &amp;lt;/span&amp;gt;&amp;lt;em&amp;gt;&amp;lt;span lang="AR-SA"&amp;gt;‎&amp;lt;/span&amp;gt;&amp;lt;/em&amp;gt;&amp;lt;span&amp;gt;from 6 GHz to 7.5 GHz by cutting the inverted diamond shape in a &amp;lt;/span&amp;gt;&amp;lt;em&amp;gt;&amp;lt;span lang="AR-SA"&amp;gt;‎&amp;lt;/span&amp;gt;&amp;lt;/em&amp;gt;&amp;lt;span&amp;gt;special process. The developed ultra-wideband antenna is verified by &amp;lt;/span&amp;gt;&amp;lt;em&amp;gt;&amp;lt;span lang="AR-SA"&amp;gt;‎&amp;lt;/span&amp;gt;&amp;lt;/em&amp;gt;&amp;lt;span&amp;gt;comparing the simulation results with the measurement results. The &amp;lt;/span&amp;gt;&amp;lt;em&amp;gt;&amp;lt;span lang="AR-SA"&amp;gt;‎&amp;lt;/span&amp;gt;&amp;lt;/em&amp;gt;&amp;lt;span&amp;gt;measured results with a fractional bandwidth of 133% have a good &amp;lt;/span&amp;gt;&amp;lt;em&amp;gt;&amp;lt;span lang="AR-SA"&amp;gt;‎&amp;lt;/span&amp;gt;&amp;lt;/em&amp;gt;&amp;lt;span&amp;gt;agreement with the simulation results 146%. Moreover, the measured radiation showed omnidirectional patterns&amp;lt;/span&amp;gt;&amp;lt;em&amp;gt;&amp;lt;span lang="AR-SA"&amp;gt;‎&amp;lt;/span&amp;gt;&amp;lt;/em&amp;gt;&amp;lt;span lang="EN-GB"&amp;gt;.&amp;lt;/span&amp;gt;&lt;/jats:p&gt;</dc:description><dc:publisher>Institute of Advanced Engineering and Science</dc:publisher><dc:date>2017-12-01</dc:date><dc:type>info:eu-repo/semantics/article</dc:type><dc:format>application/pdf</dc:format><dc:identifier>https://doi.org/10.11591/ijece.v7i6.pp2929-2935</dc:identifier><dc:identifier>10.11591/ijece.v7i6.pp2929-2935</dc:identifier><dc:source>International Journal of Electrical and Computer Engineering (IJECE); Vol 7 No 6 (2017); 2929</dc:source><dc:source>2088-8708</dc:source><dc:source>2088-8708</dc:source><dc:relation>http://ijece.iaescore.com/index.php/IJECE/article/viewFile/8659/7255</dc:relation><dc:rights>http://creativecommons.org/licenses/by-nc/4.0</dc:rights></oai_dc:dc>