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All Journal Komunikasi Fisika Indonesia Unri Conference Series: Community Engagement Science, Technology, and Communication Journal Journal of The Physical Society of Indonesia
Soerbakti, Yan
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Humanities Computer Science & IT Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Materials Science & Nanotechnology Physics

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Analysis and modelling of the characteristics of telecommunication antennas utilising metamaterials with a circular structure Defrianto, Defrianto; Saktioto, Saktioto; Anita, Sofia; Zahroh, Siti; Soerbakti, Yan; Emrinaldi, Tengku
Indonesian Physics Communication Vol 21, No 3 (2024)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jkfi.21.3.233-238

Abstract

The development of telecommunication antenna technology is increasingly being considered with the need for high and practical antenna performance. The antenna technology can be realized by using the split ring resonator (SRR) metamaterial structure. SRR metamaterial is a periodic material that has minimal manufacturing dimensions and is able to work at high frequencies. The ability of this metamaterial has the potential to be implemented in microstrip antenna structures as telecommunication applications. This study aims to design, simulate and analyze the characteristics of SRR-Circle metamaterials against the frequency function and application performance as a telecommunication antenna. The process is carried out using the Computer Simulation Technology (CST) Studio Suite Software which is operated at a working frequency of 0.009 – 9 GHz. The metamaterial structure is combined from 1 – 4 SRRs in the shape of a Circle with a fixed radius of 3.5 mm. The results of this study indicate the characteristics of metamaterials with negative values in relative permittivity (ɛᵣ), relative permeability (μᵣ) and refractive index (n) with the highest values in the metamaterial structure of the combination of 4 SRR-Circles, each with values of -144.33 Farad/m, -9.29 H/m and -9.07. In its application as a telecommunications antenna, metamaterials have succeeded in improving antenna performance. The highest antenna performance was obtained in the combination structure of 4 SRR-Circles with a return loss value of -34.37 dB, and a bandwidth of 1.00 GHz at a VSWR of 6.77 – 7.77 GHz. The results of this antenna performance have the potential to be applied to telecommunications antenna technology such as satellites, radars and 5G networks.
Enhancing rural teacher competence in Meranti Islands Regency high school basic physics practical curriculum Saktioto, Saktioto; Defrianto, Defrianto; Rini, Ari Sulistyo; Irawan, Dedi; Agrina, Agrina; Anita, Sofia; Soerbakti, Yan; Rabin, Mohammed Fisal
Indonesian Physics Communication Vol 21, No 3 (2024)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jkfi.21.3.%p

Abstract

Teacher competency standards serve as benchmarks that can be utilised to assess the attributes deemed essential for professional competence in educators. Educators play a crucial and strategic role in the pursuit of national development objectives, particularly within the realm of education. However, the objective of education appears to be a reduction in competency standards at the conclusion of each academic year for specific subjects, particularly in the realm of science and Basic Physics. Consequently, this initiative seeks to inspire educators and students in secondary education to enhance their understanding of the educational process by engaging in the study of science, specifically Basic Physics, utilising appropriate tools and resources. The suggested mode of engagement involves the processes of instruction and education within secondary educational institutions across the Meranti Islands Regency, encompassing SMA, MAN, MTs, and SMP levels. This activity further offers insights into experiments and demonstration tools for educators in the realm of science and Basic Physics, facilitating a comprehension of concepts that range from simple to intricate natural phenomena through accessible demonstration media designed for practical application. In this manner, educators are anticipated to exhibit motivation and enthusiasm throughout the learning process, accompanied by a thorough and nuanced comprehension of the subject matter. To enhance teacher competency standards significantly, ensuring they become more qualified and professional.
Potential multi-detection manifestation of ultra-sensitive sensors based on ZnO thin films and metamaterials Defrianto, Defrianto; Soerbakti, Yan; Saktioto, Saktioto; Rini, Ari Sulistyo; Fadhali, Mohammed; Yupapin, Preecha
Science, Technology and Communication Journal Vol. 5 No. 1 (2024): SINTECHCOM Journal (October 2024)
Publisher : Lembaga Studi Pendidikan and Rekayasa Alam Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59190/stc.v5i1.265

Abstract

This study aims to observe the ability of a thin layer of zinc oxide (ZnO) which is applied to sensor technology. Currently, the low detection limit of the sensor is a problem in its use. Metamaterials offer resonant properties in increasing sensitivity, but their performance is still below the current high modern technology. The high engineering properties of metamaterials provide opportunities for realizing renewable metamaterials. ZnO thin layer semiconductor material as a transparent conductive oxide can provide a wide detection potential. The ability of ZnO thin films to be adapted to metamaterial sensors can be further investigated and improved for the future.
Intensifikasi Kompetensi Guru Desa dalam Penguatan Kurikulum Praktikum Fisika Dasar di Tingkat Sekolah Menengah se-Kabupaten Kepulauan Meranti Saktioto, Saktioto; Defrianto, Defrianto; Rini, Ari Sulistyo; Irawan, Dedi; Agrina, Agrina; Anita, Sofia; Soerbakti, Yan; Rabin, Mohammed Fisal
Unri Conference Series: Community Engagement Vol 6 (2024): Seminar Nasional Pemberdayaan Masyarakat
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/unricsce.6.766-771

Abstract

Teacher competency standards are indicators that can be used as a measure of teacher characteristics that are considered professionally competent. Teachers have a very strategic role in efforts to realize national development goals, especially in the field of education. However, the goal of education is to experience a decline in competency standards at the end of each year for certain subjects, especially science / Basic Physics. Therefore, this service aims to motivate educators and students at the secondary school level to raise awareness of the education process through the practice of learning science / Basic Physics using adequate equipment and materials. The proposed form of activity is in the form of teaching and learning in secondary schools throughout the Meranti Islands Regency including SMA, MAN, and MTs, and SMP levels. In addition, this activity also provides guidance on experiments and demonstration tools for science / Basic Physics teachers regarding understanding concepts from simple to complex natural phenomena through simple demonstration media for practical tools. That way, teachers are expected to be motivated and enthusiastic in the learning process with a good and comprehensive understanding of the material. So that it can increase teacher competency standards intensively to be more qualified and professional.
Existence of Fiber Bragg Grating Sensors Based on Power Input and Transmission Distance Saktioto, Saktioto; Bintang, Shantela Hanna Mastaria; Emrinaldi, Tengku; Zamri, Zamri; Samudra, Mohd Rendy; Soerbakti, Yan
Journal of the Physical Society of Indonesia Vol. 1 No. 1 (2025): (April 2025)
Publisher : The Physical Society of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35895/jpsi.1.1.45-50.2025

Abstract

Optical fiber was chosen as a transmission medium because of its ability to transmit data with high power, high speed and low attenuation. Despite these advantages, optical fiber still faces challenges such as attenuation and dispersion which can reduce data transmission performance. This research examines the performance of fiber optic-based communication systems using fiber Bragg grating (FBG) sensors, especially in overcoming linear effects that affect transmission quality. In designing this system, researchers varied the transmission distance from 10 – 150 km, and adjusted the input power from 2 – 20 dBm. The research results show that uniform FBG is more effective in improving signal quality and reducing transmission errors compared to Gaussian FBG. The use of FBGs on coarse wavelength division multiplexing (CWDM) channels also improves system performance, with better quality factors and reduced bit error rates (BER). However, at a distance of more than 60 km, the signal quality decreases due to high noise, which also reduces the Q-factor value, the Q-factor value drops significantly from 61.7699 to 3.0866. Overall, uniform FBG provides more stable and robust data transmission, and increases transmission capacity compared to Gaussian FBG
Co-Authors Agrina, Agrina Bintang, Shantela Hanna Mastaria dedi irawan Defrianto Defrianto Fadhali, Mohammed Rabin, Mohammed Fisal Rini, Ari Sulistyo Saktioto Saktioto Samudra, Mohd Rendy Sofia Anita Tengku Emrinaldi Yupapin, Preecha Zahroh, Siti Zamri, Zamri