Design and electromagnetic simulation of 915 MHz LoRa antennas for model rocketry applications

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Date

2026

Journal Title

Journal ISSN

Volume Title

Publisher

State University "Kyiv Aviation Institute"

Abstract

The simulated antennas exhibited satisfactory radiation patterns (not shown in this abstract) for the mission envelope of a 3 km apogee model rocket. However, as can be observed in Figures 1(b), 2(b), and 3(c), the antennas are not adequately matched to the standard 50 Ω impedance, requiring further geometric optimization to ensure maximum power transfer. Therefore, future work will focus on optimizing the antenna geometries to achieve proper impedance matching and satisfactory gain. Subsequently, the antennas will be simulated integrated into the rocket CAD model to assess potential interference of the surrounding materials with signal transmission.

Description

1. Friends of Amateur Rocketry. (n.d.). FAR-OUT: A hybrids and liquids rocketry competition. Retrieved May 19, 2026, from https://www.faroutlaunch.org/. 2. Latin American Space Challenge. (n.d.). Latin American Space Challenge. Retrieved May 19, 2026, from https://www.lasc.space/. 3. Aloÿs Augustin et al. “A Study of LoRa: Long Range & Low Power Networks for the Internet of Things”. In: Sensors 16.9 (2016), p. 1466. DOI: 10.3390/s16091466. 4. Constantine A. Balanis. Antenna Theory: Analysis and Design. 4th ed. Wiley, 2016. 5. Jaume Anguera et al. “Multiband Handset Antenna with a Parallel Excitation of PIFA and Slot Radiators”. In: IEEE Transactions on Antennas and Propagation 58.2 (2007), pp. 348–356. 6. John D. Kraus and Ronald J. Marhefka. Antennas for All Applications. 3rd ed. McGraw-Hill, 2002. 7. Co Ansys, Inc. (2024). Ansys HFSS (Version 2024 R2) [Computer software]. https://www.ansys.com/products/electronics/ansys-hfss.

Keywords

antenna, monopole, sleeve, IFA, LoRa, 915 MHz, rocketry, HFSS

Citation

Passeri Moraes de Souza V. Design and electromagnetic simulation of 915 mhz lora antennas for model rocketry applications // International Brazilian-Ukrainian Scientific Conference of Students, PhD Candidates and Young Researchers “Aerospace Technologies”. – Kyiv, State University "Kyiv Aviation Institute", 2026. - P. 1-5.