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All Journal Jurnal Elektronika dan Telekomunikasi JAST : Jurnal Aplikasi Sains dan Teknologi
Rusfa, Rusfa
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Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Other

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Pengenalan Energi Baru Terbarukan pada SD Negeri 010 Bukit Bestari, Tanjungpinang Prov. Kepulauan Riau Suhendra, Tonny; Mujahidin, Muhamad; Rusfa, Rusfa; Nusyirwan, Deny; Syafiq, Ahmad
JAST : Jurnal Aplikasi Sains dan Teknologi Vol 8, No 2 (2024): EDISI DESEMBER 2024
Publisher : Universitas Tribhuwana Tunggadewi Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/jast.v8i2.6071

Abstract

As fossil fuels dwindle, new and renewable energy sources play an essential role in the future. Modern society uses electricity in almost all aspects of life. So do schools. In schools with good access to electricity, modern electronic technology and media such as projectors, computers, internet, audio and video, equipment, and practical objects operated using electricity can be used for educational purposes. Ultimately, schools can improve the results of the learning process. With this background, Community Service was carried out regarding introducing new renewable energy at SDN 010 Bukit Bestari. The service received a positive response and increased knowledge and desire to utilize renewable energy in schools. The sustainability of the service activity is the implementation of renewable energy in school facilities that use electricity.ABSTRAKSeiring dengan berkurangnya bahan bakar fosil, maka sumber energi baru dan terbarukan memainkan peranan penting di masa depan. Masyarakat modern memanfaatkan listrik di hampir semua aspek kehidupan. Demikian juga sekolah. Sekolah yang memiliki akses listrik baik, pemanfaatan teknologi dan media elektronik modern di sekolah seperti proyektor, komputer, internet, audio dan video, peralatan dan benda praktek yang dioperasikan menggunakan listrik dapat dipergunakan untuk tujuan pendidikan. Pada akhirnya Sekolah mendapatkan potensi menigkatkan hasil proses pembelajaran. Dengan latar belakang tersebut dilaksanakan Pengabdian kepada Masyarakat mengenai pengenalan energi baru terbarukan pada SD negeri 010 Bukit Bestari. Pengabdian mendapatkan sambutan positif dan meningkatkan pengetahuan dan keinginan untuk memanfaatkan energi terbarukan di sekolah. Adapun keberlanjutan dari kegiatan pengabdian adalah implementasi energi terbarukan pada fasilitas sekolah yang mempergunakan tenaga listrik.
Design, Fabrication, and Experimental Evaluation of a 435 MHz Helical Antenna for 433 MHz IoT Modules Rusfa, Rusfa; Pramana, Rozeff; Bavitra, Bavitra; Oktavia, Ferly; Alajuri, M. Hasbi Sidqi; Simannulang, Andreas M
Jurnal Elektronika dan Telekomunikasi Vol 25, No 2 (2025)
Publisher : National Research and Innovation Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jet.813

Abstract

The rapid growth of wireless communication demands within Internet of Things (IoT) applications requires antennas that exhibit high efficiency, compact dimensions, and reliable performance in the UHF band. This study aims to design, simulate, fabricate, and evaluate the performance of a helical antenna operating at 435 MHz, with its results compared against a slot antenna. The design process was conducted using CST Studio Suite with parameter optimization to achieve an optimal configuration. The prototype was fabricated using copper wire as the radiating element and an aluminum ground plane. Experimental testing was carried out with a UHF Antenna Demonstrator, followed by validation through a 433 MHz RF module integrated with Arduino. The simulation results indicated that the optimized helical antenna achieved aVoltage Standing Wave Ratio (VSWR) of 1.8 and a gain of 11.5 dBi. In contrast, the measurement results demonstrated improved performance, with a VSWR of 1.05, a return loss of −32.4 dB, and a bandwidth of 41 MHz. Comparative analysis revealed that the helical antenna outperformed the slot antenna in terms of efficiency, directional radiation pattern, and transmission distance, reaching up to 25 m compared to 15 m for the slot antenna. These findings confirm that the helical antenna is a more suitable and effective solution for UHF IoT communication systems, providing reliable performance for modern wireless applications.
Co-Authors Ahmad Syafiq Alajuri, M Hasbi Sidqi Bavitra, Bavitra Ferly Oktavia Mujahidin1, Muhamad Pramana, Rozeff Simannulang, Andreas M Tonny Suhendra