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Bandwidth Enhancement of Proximity-Coupled Patch Antenna Using Dual Open-Ended Ring-Shaped Slots for Sub-6 GHz Applications

Jurnal Teknik Elektro · Vol. 18 No. 1 (2026) · hlm. 46–51

DOI
10.15294/jte.v18i1.47475
ISSN
2549-1571, 1411-0059
Terbit
2026-06-30
Penerbit
LPPM Universitas Negeri Semarang
Bahasa
eng

Abstrak

This paper presents a bandwidth enhancement of patch antenna intended for sub-6 GHz applications. A square-shaped radiating patch is configured on a double-layer FR-4 dielectric substrates with a dielectric constant of 4.3 and a total thickness of 3.2 mm. To improve the impedance bandwidth, the antenna is fed using proximity-coupling method, in which the microstrip feeding line and the ground plane are placed on the top and bottom layers of the second substrate. Dual open-ended ring-shaped slots are subsequently introduced and etched on the radiating patch element to further enhance the antenna bandwidth. Various slot structures are evaluated, and their physical parameters are varied in a parametric study to analyze their effect on antenna performance, particularly impedance bandwidth. The proposed antenna has a compact dimension of 0.38λ0×0.38λ0×0.06λ0 and exhibits wideband characteristics with a fractional bandwidth of 22.3%.

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11 penulis · 20 tautan kepenulisan bersama · 12 lintas organisasi

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  • Bandung Institute of Technology
  • Sumatera Institute of Technology
  • Indonesian National Institute of Aeronautics and Space
  • Telkom University
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Rekan penulisOrganisasiArtikel bersama
Achmad MunirBandung Institute of Technology1
Mohammad Ridwan EffendiBandung Institute of Technology1
Iskandar IskandarBandung Institute of Technology1
Alvita MaurizkaBandung Institute of Technology1
Fadil HamdaniBandung Institute of Technology1
Muhammad Reza Kahar AzizSumatera Institute of Technology1
Mohammad AnthoniSumatera Institute of Technology1
Anita PascawatiIndonesian National Institute of Aeronautics and Space1
Dick MaryopiTelkom University1

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Sumber metadata: OAI-PMH (metadata jurnal) https://journal.unnes.ac.id/journals/jte/oai, pertama di-harvest 6 Nov 2026, terakhir terlihat 8 Nov 2026.
Metadata asli (oai_dc) 
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	<dc:title xml:lang="en">Bandwidth Enhancement of Proximity-Coupled Patch Antenna Using Dual Open-Ended Ring-Shaped Slots for Sub-6 GHz Applications</dc:title>
	<dc:creator xml:lang="en">Asthan, Rheyuniarto Sahlendar</dc:creator>
	<dc:creator xml:lang="en">Ulfah, Mia Maria</dc:creator>
	<dc:subject xml:lang="en">open-ended ring-shaped slot</dc:subject>
	<dc:subject xml:lang="en">proximity coupling</dc:subject>
	<dc:subject xml:lang="en">sub-6 GHz applications</dc:subject>
	<dc:subject xml:lang="en">wideband patch antenna</dc:subject>
	<dc:description xml:lang="en">This paper presents a bandwidth enhancement of patch antenna intended for sub-6 GHz applications. A square-shaped radiating patch is configured on a double-layer FR-4 dielectric substrates with a dielectric constant of 4.3 and a total thickness of 3.2 mm. To improve the impedance bandwidth, the antenna is fed using proximity-coupling method, in which the microstrip feeding line and the ground plane are placed on the top and bottom layers of the second substrate. Dual open-ended ring-shaped slots are subsequently introduced and etched on the radiating patch element to further enhance the antenna bandwidth. Various slot structures are evaluated, and their physical parameters are varied in a parametric study to analyze their effect on antenna performance, particularly impedance bandwidth. The proposed antenna has a compact dimension of 0.38λ0×0.38λ0×0.06λ0 and exhibits wideband characteristics with a fractional bandwidth of 22.3%.</dc:description>
	<dc:publisher xml:lang="en">LPPM Universitas Negeri Semarang</dc:publisher>
	<dc:date>2026-06-30</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:type xml:lang="en">Peer-reviewed Article</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://journal.unnes.ac.id/journals/jte/article/view/47475</dc:identifier>
	<dc:identifier>10.15294/jte.v18i1.47475</dc:identifier>
	<dc:source xml:lang="en">Jurnal Teknik Elektro; Vol. 18 No. 1 (2026); 46-51</dc:source>
	<dc:source>2549-1571</dc:source>
	<dc:source>1411-0059</dc:source>
	<dc:source>10.15294/jte.v18i1</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://journal.unnes.ac.id/journals/jte/article/view/47475/10454</dc:relation>
	<dc:rights xml:lang="en">Copyright (c) 2026 Jurnal Teknik Elektro</dc:rights>
</oai_dc:dc>