Universiti Teknologi Malaysia Institutional Repository

Triple-band reconfigurable monopole antenna for long-range IoT applications

Yahya, Muhammad Sani and Soeung, Socheatra and Sawaran Singh, Narinderjit Singh and Yunusa, Zainab and Chinda, Francis Emmanuel and Abdul Rahim, Sharul Kamal and Musa, Umar and M. Nor, Nursyarizal and Sovuthy, Cheab and Abro, Ghulam E. Mustafa (2023) Triple-band reconfigurable monopole antenna for long-range IoT applications. Sensors, 23 (12). pp. 1-15. ISSN 1424-8220

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Official URL: http://dx.doi.org/10.3390/s23125359

Abstract

In this study, a novel reconfigurable triple-band monopole antenna for LoRa IoT applications is fabricated on an FR-4 substrate. The proposed antenna is designed to function at three distinct LoRa frequency bands: 433 MHz, 868 MHz, and 915 MHz covering the LoRa bands in Europe, America, and Asia. The antenna is reconfigurable by using a PIN diode switching mechanism, which allows for the selection of the desired operating frequency band based on the state of the diodes. The antenna is designed using CST MWS® software 2019 and optimized for maximum gain, good radiation pattern and efficiency. The antenna with a total dimension of 80 mm × 50 mm × 0.6 mm (0.12 (Formula presented.) × 0.001 (Formula presented.) at 433 MHz) has a gain of 2 dBi, 1.9 dBi, and 1.9 dBi at 433 MHz, 868 MHz, and 915 MHz, respectively, with an omnidirectional H-plane radiation pattern and a radiation efficiency above 90% across the three frequency bands. The fabrication and measurement of the antenna have been carried out, and the results of simulation and measurements are compared. The agreement among the simulation and measurement results confirms the design’s accuracy and the antenna’s suitability for LoRa IoT applications, particularly in providing a compact, flexible, and energy efficient communication solution for different LoRa frequency bands.

Item Type:Article
Uncontrolled Keywords:antenna, energy efficiency, IoT, LoRa, monopole, PIN diode, reconfigurable
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:106928
Deposited By: Yanti Mohd Shah
Deposited On:06 Aug 2024 06:11
Last Modified:06 Aug 2024 06:11

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