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Bandwidth enhancement and miniaturization of circular-shaped microstrip antenna based on beleved half-cut structure for MIMO 2x2 application

International Journal of Electrical and Computer Engineering (IJECE) · Vol. 9 No. 2 (2019)

DOI
10.11591/ijece.v9i2.pp1110-1121
ISSN
2088-8708, 2088-8708
Published
2019-04-01
Publisher
Institute of Advanced Engineering and Science
License
creativecommons.org/licenses/by-nc/4.0

Abstract

In this paper, circular-shaped microstrip antenna was simulated, fabricated, and measured accordingly. As the novelty, to enhance bandwidth and reduce antenna size, beleved half-cut microstrip structure is proposed. Further, this proposed antenna structure will be applied to multiple input multiple output (MIMO) antenna 2 ´ 2. Therefore, this research was investigated conventional circular shape antenna (CCSA), circular shaped beleved antenna (CSBA), and MIMO circular shaped beleved antenna (MIMO-CBSA) as Model 1, Model 2, and Model 3, respectively. An FR4 substrate with er= 4.4, thickness h=1.6 mm, and tan d=0.0265 was used. The simulation has been conducted using Advanced Design System (ADS). The antenna CCSA/CSBA/ MIMO-CBSA achieve 1.831GHz/2.265 GHz/2.256 GHz, -15.13dB/-17.37dB/-17.25 dB, 1.42/1.31/1.33, and 1.474/2.332/2.322 for center frequency, reflection coefficient, VSWR, and bandwidth, respectively. This antenna has a size 63x90 mm and 51.5x90 mm for CCSA (Model 1) and CSBA (Model 2), respectively. After the structure of MIMO 2 ´ 2 was applied, the size of antenna MIMO-CBSA (Model 3) became 180 mm x 180 mm with a mutual coupling (S 21 )=-26.18 dB and mutual coupling (S 31 )=-26.41 dB. The result showed that proposed antenna CSBA (Model 2) has wider-bandwidth of 58,2% and smaller-size of 18.2%. Furthermore, after CSBA (Model 2) structure was applied to MIMO 2 ´ 2 (Model 3) and the MIMO antenna obtain good mutual coupling (

Collaboration network of the authors

19 authors · 46 co-authorship links · 20 across different organisations

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

  • Sultan Ageng Tirtayasa University
  • Mercu Buana University
  • University of Indonesia
  • Universitas 17 Agustus 1945 Jakarta
  • Pakuan University
  • Tun Hussein Onn University of Malaysia
  • Different organisations
  • Same organisation
  • Affiliation unknown
  • Thicker line = more joint articles · bigger circle = more articles
Show as table
Co-authorOrganisationJoint articles
Gunawan WibisonoUniversity of Indonesia1
Tierta SyafradityaUniversity of Indonesia1
Alimuddin AlimuddinSultan Ageng Tirtayasa University1
Anggoro Suryo PramudyoSultan Ageng Tirtayasa University1
Siswo WardoyoSultan Ageng Tirtayasa University1
Romi WiryadinataSultan Ageng Tirtayasa University1
Mudrik AlaydrusMercu Buana University1
Rizki Ramadhan PutraMercu Buana University1
Muslim MuslimMercu Buana University1
Huda A. MajidTun Hussein Onn University of Malaysia1
Galang P. N. HakimMercu Buana University1
Ahmad FirdausiMercu Buana University1

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>Bandwidth enhancement and miniaturization of circular-shaped microstrip antenna based on beleved half-cut structure for MIMO 2x2 application</dc:title><dc:creator>Firmansyah, Teguh</dc:creator><dc:creator>Praptodiyono, Supriyanto</dc:creator><dc:creator>Herudin, Herudin</dc:creator><dc:creator>Aribowo, Didik</dc:creator><dc:creator>Alam, Syah</dc:creator><dc:creator>Astuti, Dian Widi</dc:creator><dc:creator>Yunus, Muchamad</dc:creator><dc:description>&lt;jats:p&gt;&amp;lt;span lang="EN-US"&amp;gt;In this paper, circular-shaped microstrip antenna was simulated, fabricated, and measured accordingly. As the novelty, to enhance bandwidth and reduce antenna size, beleved half-cut microstrip structure is proposed. Further, this proposed antenna structure will be applied to multiple input multiple output (MIMO) antenna 2&amp;lt;/span&amp;gt;&amp;lt;span lang="EN-US"&amp;gt;´&amp;lt;/span&amp;gt;&amp;lt;span lang="EN-US"&amp;gt;2. Therefore, this research was investigated conventional circular shape antenna (CCSA), circular shaped beleved antenna (CSBA), and MIMO circular shaped beleved antenna (MIMO-CBSA) as Model 1, Model 2, and Model 3, respectively. An FR4 substrate with er= 4.4, thickness h=1.6 mm, and tan d=0.0265 was used. The simulation has been conducted using Advanced Design System (ADS). The antenna CCSA/CSBA/ MIMO-CBSA achieve 1.831GHz/2.265 GHz/2.256 GHz, -15.13dB/-17.37dB/-17.25 dB, 1.42/1.31/1.33, and 1.474/2.332/2.322 for center frequency, reflection coefficient, VSWR, and bandwidth, respectively. This antenna has a size 63x90 mm and 51.5x90 mm for CCSA (Model 1) and CSBA (Model 2), respectively. After the structure of MIMO 2&amp;lt;/span&amp;gt;&amp;lt;span lang="EN-US"&amp;gt;´&amp;lt;/span&amp;gt;&amp;lt;span lang="EN-US"&amp;gt;2 was applied, the size of antenna MIMO-CBSA (Model 3) became 180 mm x 180 mm with a mutual coupling (S&amp;lt;sub&amp;gt;21&amp;lt;/sub&amp;gt;)=-26.18 dB and mutual coupling (S&amp;lt;sub&amp;gt;31&amp;lt;/sub&amp;gt;)=-26.41 dB. The result showed that proposed antenna CSBA (Model 2) has wider-bandwidth of 58,2% and smaller-size of 18.2%. Furthermore, after CSBA (Model 2) structure was applied to MIMO 2&amp;lt;/span&amp;gt;&amp;lt;span lang="EN-US"&amp;gt;´&amp;lt;/span&amp;gt;&amp;lt;span lang="EN-US"&amp;gt;2 (Model 3) and the MIMO antenna obtain good mutual coupling (&amp;amp;lt;-15dB). Moreover, the measured results are good agreement with the simulated results. In conclusion, all of these advantages make it particularly valuable in multistandard antenna applications design such as GSM950, WCDMA1800, LTE2300, and WLAN2400.&amp;lt;/span&amp;gt;&lt;/jats:p&gt;</dc:description><dc:publisher>Institute of Advanced Engineering and Science</dc:publisher><dc:date>2019-04-01</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.v9i2.pp1110-1121</dc:identifier><dc:identifier>10.11591/ijece.v9i2.pp1110-1121</dc:identifier><dc:source>International Journal of Electrical and Computer Engineering (IJECE); Vol 9 No 2 (2019); 1110</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/14885/11777</dc:relation><dc:rights>http://creativecommons.org/licenses/by-nc/4.0</dc:rights></oai_dc:dc>