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All Journal Brilliance: Research of Artificial Intelligence Journal Geuthee of Engineering and Energy
Herda, Deri Latika
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Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Mathematics Other

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Fiber Optical Network Damage Detection Passive Splitter 1:8 in ODC uses IOT Technology as a means of Real Time Reporting Asril, Aprinal Adila; Septima, Uzma; Dewi, Ratna; Maria, Popy; Herda, Deri Latika
Brilliance: Research of Artificial Intelligence Vol. 3 No. 2 (2023): Brilliance: Research of Artificial Intelligence, Article Research November 2023
Publisher : Yayasan Cita Cendekiawan Al Khwarizmi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/brilliance.v3i2.2966

Abstract

Fiber optic networks currently have a lot of interest, so a network monitoring system is needed that guarantees quality and speed of repair if mass disruption occurs. in research [1] regarding fiber network damage detection using IoT with the use of a 1:4 splitter and the use of a detector that can work at a wavelength of 650nm so that it can detect damaged cables with output in the software. So in connection with this, the author wants to develop the results of this research by using a 1:8 splitter and carrying out detection using the LDR sensor and NodeMCU ESP32 using IoT (Internet of Things) technology. The ESP32 NodeMCU will receive data in the form of light intensity values ??at each ODC from the LDR sensor. And then sent to a database that is connected directly to the Android application. The cable identification process occurs in three states: normal, warning, and error. The test and analysis results show that the hardware device can work well, with attenuation in the passive splitter cable of 10.28 dB and a light source with a wavelength of 650 nm. Cable detected as damaged is indicated by an output in the software with a delay of 4.56 s.
Circular microstrip antenna with defected ground structure for bandwidth enhancement at 2.4 GHz Fadly, Muhammad Nur; Herda, Deri Latika; Maria, Popy
Journal Geuthee of Engineering and Energy Vol 5, No 1 (2026): Journal Geuthee of Engineering and Energy
Publisher : Geuthèë Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52626/joge.v5i1.67

Abstract

This study proposes an optimized circular microstrip patch antenna integrated with a stepped-slot Defected Ground Structure (DGS) for 2.4 GHz WLAN applications. The objective of this work is to improve the bandwidth and gain performance of conventional microstrip antennas, which are typically limited by narrow bandwidth and low radiation efficiency. The main contribution of this study is the development of a novel stepped-slot DGS configuration combined with a circular patch geometry to achieve simultaneous enhancement of bandwidth and gain. The proposed antenna is designed on an FR-4 substrate with a dielectric constant of 4.3 and a thickness of 1.6 mm, and analyzed using CST Microwave Studio. A parametric optimization of the DGS dimensions is performed to obtain optimal antenna performance. Simulation results show that the bandwidth increases significantly from 70.4 MHz to 298.8 MHz, representing more than a fourfold improvement. In addition, the antenna gain improves from 2.72 dBi to 3.87 dBi after the implementation of the DGS structure. These results confirm that the proposed stepped-slot DGS effectively enhances impedance bandwidth and radiation performance without increasing antenna complexity. Therefore, the proposed antenna is suitable for practical WLAN applications requiring compact size and improved performance. The findings of this study also provide useful insights for the design of high-performance microstrip antennas using DGS techniques in future wireless communication systems.
Co-Authors Aprinal Adila Asril Fadly, Muhammad Nur Popy Maria Ratna Dewi Uzma Septima