https://sintechcomjournal.com/index.php/stc/issue/feedScience, Technology, and Communication Journal2026-02-10T00:00:00+07:00Rahmad Abdillahrahmad@sintechcomjournal.comOpen Journal Systems<p><strong>Science, Technology, and Communication Journal (SINTECHCOM Journal)</strong> is a peer-reviewed journal (e-ISSN: <a href="https://portal.issn.org/resource/ISSN/2774-8782" target="_blank" rel="noopener"><strong>2774-8782</strong></a> | p-ISSN: -) published regularly in February, June, and October by the <a href="https://drive.google.com/file/d/11GdUsTZWy_-IMFLCJhGancn8zixEqF5A/view?usp=sharing" target="_blank" rel="noopener"><strong><u>Lembaga Studi Pendidikan and Rekayasa Alam Riau (LSPRAR)</u></strong></a> in collaborates with the <a href="https://drive.google.com/file/d/1b7yyhUhfpkJZcz2YAIfUevvsQEcvjO2C/view?usp=sharing" target="_blank" rel="noopener"><span style="text-decoration: underline;"><strong>Indonesian Physical Society (PSI)-Riau</strong></span></a> and <a href="https://drive.google.com/file/d/1j_jbHyIuRRNnVs-x9v2S3rwuViooWIzf/view?usp=sharing" target="_blank" rel="noopener"><strong>Universitas Islam Mulia Yogyakarta</strong></a>. <strong>SINTECHCOM Journal</strong> is a periodical publication that publishes scientific articles on research results in the fields of basic science and engineering.</p>https://sintechcomjournal.com/index.php/stc/article/view/361Implementation of fuzzy analytical hierarchy process (FAHP) and TOPSIS for scholarship decision support system for the underprivable2026-02-06T15:44:09+07:00Fitra Kurniafitra.k@uin-suska.ac.idM. Khairul Amrifitra.k@uin-suska.ac.id<p>Scholarship is part of assistance given by organization, company, institution or person. One of the existing scholarships at SMKN 2 Bengkalis is underprivileged scholarship given to students with middle to lower economic levels. This research does for helping underprivileged scholarship selectors in SMKN 2 Bengkalis to choose who are recommended eligible students as recipients of underprivileged scholarships with set established criteria before. Fuzzy analytical hierarchy process method implemented in this research with 7. With several criteria having each 4 – 5 values. And this research uses 239 active students data in SMKN 2 Bengkalis in 2021 as a decision alternative. Testing is done with 2 methods that are black box which system has worked in accordance with expected and UAT by 79% of both respondents. After obtaining the preference value, the final results of the ranking are obtained, the order of the smallest value of the student who is most. Entitled to receive scholarship assistance, namely students 1, 5, and 10.</p>2026-02-10T00:00:00+07:00Copyright (c) 2026 Fitra Kurnia, M. Khairul Amrihttps://sintechcomjournal.com/index.php/stc/article/view/340Ultra-wideband diamond-shaped metamaterial absorber for radar cross section reduction2025-11-17T14:59:24+07:00Defrianto Defriantodefrianto@lecturer.unri.ac.idErwin Kurniaerwin.kurnia1920@student.unri.ac.idSaktioto Saktiotosaktioto@lecturer.unri.ac.idTengku Emrinalditengku.emrinaldi@lecturer.unri.ac.idFeby Nur Sakinahfeby.nur@lecturer.unri.ac.idM Ikhsanmikhsan@lecturer.unri.ac.idYan Soerbaktiyansoerbakti2@gmail.com<p>This study presents the design and full-wave simulation of a diamond-shaped metamaterial absorber configured in a 4×4 array for applications in radar cross section reduction (RCSR). The structure was modeled on an FR-4 substrate with a copper patch and metallic ground plane to achieve high absorption across the ultra-wideband (UWB) frequency range of 0.09 – 10 GHz. Simulations were conducted using CST Studio Suite. Key radar-related performance parameters including reflection (S11), transmission (S21), and absorption were analyzed. Results indicate that the absorber achieves extremely low reflection values (return loss up to -85 dB), near-zero transmission due to the ground plane, and absorption exceeding 80% in targeted radar bands. These findings demonstrate the high potential of diamond-shaped metamaterial absorbers for stealth applications and electromagnetic wave attenuation in modern radar systems.</p>2026-02-23T00:00:00+07:00Copyright (c) 2026 Defrianto Defrianto, Erwin Kurnia, Saktioto Saktioto, Tengku Emrinaldi, Feby Nur Sakinah, M Ikhsan; Yan Soerbakti