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Africa, Aaron Don M.
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Electrical & Electronics Engineering

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System design of a microstrip antenna by dimension and substrates optimization Africa, Aaron Don M.; Pasia, Samuel Alexander; Sy, Jereme Adriane
Bulletin of Electrical Engineering and Informatics Vol 13, No 3: June 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eei.v13i3.5871

Abstract

The microstrip antennas matured and improved over the last 25 years. Throughout these years, the limitations, and specifications of the said antennas have been overcome and significantly improved. Known to be lowprofile, suitable for mobile, and lightweight, these microstrip antennas are the focus of this research. In this paper, the researchers designed a microstrip antenna with varying lengths and substrates. They tested the changes and the effects in microstrip antennas of different lengths, along with altering substrates. To verify the differences, the researchers compared the performance parameters maximum gain (dBi), minimum gain (dBi), and S11 graph on each tested length and changed substrate. The rough set theory was used to determine the optimal design via MATLAB. From there, the researchers analyzed the results gathered and drew their respective conclusions. Additionally, they saw and compared each data result to know what antenna has the best performance parameters. From the results, a change in the dimension will result in a decrease in the said performance parameters. Furthermore, the change in substrate thickness also diminishes these changes.
Development of an internet of things microstrip antenna for turbo code off-grid emergency communications Jr., Fredelino A. Galleto; Africa, Aaron Don M.; Bedruz, Rhen Anjerome; Peradilla, Marnel; Barja, Samuelle P.; Macariola, Sean Bono L.; Manalo, Matthew Luigi N.; Ongkinglok, Angiolo C.
Bulletin of Electrical Engineering and Informatics Vol 14, No 6: December 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eei.v14i6.10681

Abstract

Technologies and other things are fully automated, meaning signal processing and microstrip antennas for communication are essential because of their compact size and versatility. Due to inefficiency and other factors, traditional communication methods fail, which means some emergency communication systems encounter difficulties. MATLAB was used to simulate a microstrip antenna for turbo code off-grid emergency communication and signaling of internet of things (IoT) devices. A criterion is followed to determine whether a microstrip antenna’s behavior meets the emergency communication requirements. The results show that the system’s transfer function satisfies the required conditions to meet efficient communication and signaling, especially in emergencies. The step response peaked at 1.04 and an overshoot of 4.6%, meeting the conditions for efficient communication. Besides that, the generated Bode plot and Nyquist plot display the required behavior, meaning that the microstrip antenna can function as a communication device for emergency situations.
Co-Authors Barja, Samuelle P. Bedruz, Rhen Anjerome Jr., Fredelino A. Galleto Macariola, Sean Bono L. Manalo, Matthew Luigi N. Ongkinglok, Angiolo C. Pasia, Samuel Alexander Peradilla, Marnel Sy, Jereme Adriane