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All Journal JMECS (Journal of Measurements, Electronics, Communications, and Systems) Jurnal INFOTEL
Hafizha, Syahna
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Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Materials Science & Nanotechnology

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Bandwith and Gain Enhanced Hexagonal Patch Antenna Using Hexagonal Shape SRR Ryanu, Harfan Hian; Hafizha, Syahna; Maulani, Azka; Pramudita, Aloysius Adya; Nugroho, Bambang Setia; Nur, Levy Olivia; Astuti, Rina Pudji; Dwiyanto, Dwiyanto
JURNAL INFOTEL Vol 16 No 2 (2024): May 2024
Publisher : LPPM INSTITUT TEKNOLOGI TELKOM PURWOKERTO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20895/infotel.v16i2.1118

Abstract

In the evolving digital era, the primary focus of the telecommunications industry is on the 5G network, expected to deliver high data rates, low latency, large network capacity, and improved connectivity. This article discusses efforts to adopt optimal frequencies for 5G, introducing techniques to enhance the characteristics of microstrip antennas using Double Negative (DNG) metamaterial properties. The hexagonal-shaped Split Ring Resonant (HSRR) metamaterial is considered a potential method to increase the bandwidth and gain of 5G antennas. Simulation of HSRR unit cells shows a positive impact on DNG characteristics. Meanwhile, the antenna design incorporating HSRR superstrate elements significantly increases gain to 4.47 dBi, and the implementation of HSRR structures on the groundplane results in a remarkable 368% increase in bandwidth compared to conventional antennas without metamaterial.
The Wearable Band with Electromagnetic Band Gap Antenna for Heart Rate Detection System Sitepu, Karolina; Hafizha, Syahna; Riansyah, Aldi; Salim, Akhmad Raihan; Prabowo, Vinsensius Sigit Widhi; Nur, Levy Olivia; Ryanu, Harfan Hian
JMECS (Journal of Measurements, Electronics, Communications, and Systems) In Press Papers
Publisher : Universitas Telkom

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/jmecs.v11i1.7662

Abstract

Wearable antennas are antennas that can be applied to the human body and are made of flexible materials, making them ideal for healthcare technology. The quality of the signal received by the antenna directly affects the accuracy of heart rate detection If the antenna measurements indicate strong, clear signal reception, the heart rate monitor can accurately detect and interpret heartbeats. In this study, a planar monopole antenna was designed and developed using a circular patch with Ultra Wide Band (UWB) characteristics. The FR-4 and copper were utilized for the substrate and the ground plane and patch, respectively. Simulations and measurements were conducted at 2.4 GHz and 5 GHz. The antenna with the added EBG structure showed improved performance compared to the conventional antenna, exhibiting better S11 and VSWR values. Additionally, all radiation patterns were unidirectional.  Applying this antenna to transmit heart rate measurements results in an accuracy of  94.34% compared to conventional onsite heart rate measurement. This study demonstrates that the wearable band provides real-time heart rate monitoring, while the EBG antenna enhances sensitivity and accuracy in detecting heart rate. This research can be enhanced by optimizing the EBG design and conducting additional trials to ensure the device performs well for a variety of users.
Co-Authors Aloysius Adya Pramudita Bambang Setia Nugroho Dwiyanto Dwiyanto, Dwiyanto Harfan Hian Ryanu Levy Olivia Nur Maulani, Azka Riansyah, Aldi Rina Pudji Astuti Salim, Akhmad Raihan Sitepu, Karolina Vinsensius Sigit Widhi Prabowo