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All Journal Jurnal Keteknikan Pertanian Komunikasi Fisika Indonesia TELKOMNIKA (Telecommunication Computing Electronics and Control) Indonesian Journal of Electrical Engineering and Informatics (IJEEI) Pendidikan Ekonomi Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Journal of Aceh Physics Society JOURNAL ONLINE OF PHYSICS Jurnal Fisika FLUX Unri Conference Series: Community Engagement JRAP (Jurnal Riset Akuntansi dan Perpajakan) Science, Technology, and Communication Journal
Defrianto Defrianto
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Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Materials Science & Nanotechnology Mathematics Physics

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Journal : Science, Technology, and Communication Journal

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Simulation and analysis of triangular structure metamaterial properties at microwave frequencies for medical sensor applications Amalia, Riska; Defrianto, Defrianto; Soerbakti, Yan; Asyana, Vepy; Abdullah, Hewa Yaseen
Science, Technology, and Communication Journal Vol. 5 No. 1 (2024): SINTECHCOM Journal (October 2024)
Publisher : Lembaga Studi Pendidikan dan Rekayasa Alam Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59190/stc.v5i1.286

Abstract

The development of antenna technology is increasingly developing in medical sensor applications. The medical sensor antenna can be strengthened with a split ring resonator (SRR) metamaterial structure. Metamaterial is an artificial material that has high resonance manufacturing properties and this can potentially be implemented into microstrip antenna structures. This research aims to design, simulate and analyze the characteristics of metamaterials regarding the frequency function and performance of an antenna combination of 1 – 4 metamaterials with a triangular SRR ring radius of 3.5 mm. The results of this research show that the metamaterial characteristics of permittivity, permeability and refractive index are negative. Furthermore, in the antenna application, the implementation of a 4 SRR triangular metamaterial combination structure has more optimal performance. The results show that antenna performance parameters produce return loss is -41.18 dB, the bandwidth is 3.86 GHz and gain is 3.82 dBi with an omnidirectional radiation pattern.
Analysis of bending losses in single-mode optical fiber for determining optical signal quality Ramadhani, Fatima Nur; Saktioto, Saktioto; Zulkarnain, Zulkarnain; Defrianto, Defrianto; Fadhali, Mohammed M
Science, Technology, and Communication Journal Vol. 5 No. 3 (2025): SINTECHCOM Journal (June 2025)
Publisher : Lembaga Studi Pendidikan dan Rekayasa Alam Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59190/stc.v5i3.324

Abstract

Optical fiber is an advanced transmission medium composed of glass fibers, offering significantly higher data transfer speeds compared to conventional electrical cables. This study aims to analyze power loss resulting from bending in single-mode optical fibers (SMF) to assess the impact on optical signal quality. Five distinct SMF types were simulated using OptiFiber software at wavelengths of 1310 nm and 1550 nm, with bending radii varying from 20 – 46 mm in increments of 2 mm. The results demonstrate that power attenuation in optical fibers is affected by the wavelength of operation and bend radius. At a wavelength of 1310 nm, the highest material loss was recorded in SMF-28 at 0.0125 dB/km, whereas at 1550 nm, SMF-28 exhibited the highest material loss of 31.963 dB/km. Moreover, an increase in bending radius results in a reduction of bending losses, while a decrease in bending radius leads to a significant increase in losses. These insights contribute to the development of improved fiber optic cable designs by advocating the use of enhanced protective shielding to mitigate bending-induced signal degradation.
Co-Authors Abdullah, Hewa Yaseen Ade Saputra Agrina, Agrina Ahlunnazah, Muhammad Andika Thoibah Andika Thoibah Andri Saputra Anita, Sofia Asyana, Vepy Awitdrus Awitdrus, Awitdrus Azura ' Debora M Sinaga dedi irawan Dedi Irawan Dedi Irawan Dewi Indriyani Roslim Dino Yanuardi Dwi Putri Cahya Safitri Eri Wiyadi Erwin ' Erwin Amiruddin Erwin Erwin Erwin, ' Fadhali, Mohammed Fadhali, Mohammed M Haryana Hairi Juandi Juandi Kisna Pertiwi Krisman ' Lazuardi Lazuardi Lazuardi Umar Lifa Anggar Mayasari Lihayardi, Lihayardi Lubis, Nuraina Fika M. Rasyid Ridho Maksi Ginting Mbantun Ginting Meiliyah Ariani, Meiliyah Melani Seprima Minarni Shiddiq, Minarni Moh Danil Hendry Gamal Mutiara Akhdesia Nuraina Fika Lubis Okfalisa Okfalisa Pratama, Nando Putri, Ika Aprilla Rabin, Mohammed Fisal Rahman Kurniawan Rahmi Dewi Rahmondia N. Setiadi Ramadhani, Fatima Nur Reynal Nur Razzaq Riad Syech Riad Syech Rina Afriza Rina Amelia Rini, Ari Sulistyo Rini, Ari Sulistyo Risanto, Joko Riska Amalia Rofeah ' Romi Fadli Syahputra Saktioto Saktioto Saktioto, Saktioto Salomo ' Salomo Salomo Sandra Septiana Septi Pramuliawati Soerbakti, Yan Soerbakti, Yan Sofia Anita Suhaivi Hamdan Suhardi Suhardi Suhardi Suhardi Sultan Fiddunya Fiddunya Syahril Syahril Syamsudhuha Syamsudhuha Tengku Emrinaldi Titrawani Titrawani Usman Malik Usman Usman Vepy Asyana Vira Marselly Vivina Eprillison Wahyu Candra Walfred Tambunan Wildan Adli Wima Puspita Wirianto, Hazmi Yan Soerbakti Yan Soerbakti Yohanes Dwi Saputra, Yohanes Dwi Yupapin, Preecha Zahroh, Siti Zamri, Zamri Zulfa Zulfa Zulhawati Zulkarnain Zulkarnain