Design of a Compact Meander-Line Antenna for LoRa Applications at 920–923 MHz
DOI:
https://doi.org/10.47709/brilliance.v6i4.9651Keywords:
900-923 MHz, CST Simulation, LoRa, Meander-Line AntennaAbstract
The rapid development of Internet of Things (IoT) technology requires compact, energy-efficient, and long-range wireless communication devices, making antenna design an important aspect of system development. LoRa technology provides a solution for long-range wireless communication in the sub-GHz frequency range. However, conventional antennas often have relatively large dimensions, limiting their suitability for compact and portable IoT devices. This study presents the design of a compact meander-line microstrip antenna for LoRa applications at 920–923 MHz. The meander-line structure is employed to reduce the physical dimensions of the antenna while maintaining suitable electromagnetic performance. The antenna is designed using an FR-4 substrate with a relative permittivity of 4.3 and a thickness of 1.6 mm. The design and electromagnetic simulation are performed using CST Studio Suite 2019. The proposed antenna has a substrate dimension of 42 mm × 42.5 mm. The simulation results show a return loss (S??) of ?23.47 dB at 920 MHz, a bandwidth of 32 MHz, a VSWR of 1.143, and a simulated gain of approximately 0.75 dBi over the 920–923 MHz frequency range, with a bidirectional radiation pattern. The results demonstrate that the proposed meander-line structure provides a compact antenna design with satisfactory impedance matching and radiation characteristics for LoRa applications.
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Copyright (c) 2026 Deri Latika Herda, Popy Maria, Everlyn Rahmadina, Gardinia Naz Surya
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