Design and Simulation of Yagi-Uda Switched Beam Array Antenna to Enhance the Efficiency of LoRa Networks

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Tanapong Khumyat
Pongnarin Sriploy
Peerapong Uthansakul


LoRa is a type of Low Power Wide Area Networks (LPWANs) using low energy, which is important for internet of things technology that transfers data with low data rate and uses low energy for long distance transmission in the area without the use of internet signals or mobile phone networks. Thus, expanding of an area coverage by increasing antenna gain is significant. This research proposes the design and simulation of Yagi-Uda switched beam array antenna in the 920 MHz frequency band in order to enhance antenna gain compared to general LoRa antennas. Criteria of antenna design and simulation are orderly described according to the practical principle. As shown in the results, when increasing the number of elements in Yagi-Uda antenna and arranging Yagi-Uda antennas in the array form, the antenna gain can be increased and the longer distance transmission on the LoRa networks can be achieved. Meanwhile, beam steering can be performed by adjusting phases of signals.


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Khumyat, T., Sriploy, P., & Uthansakul, P. (2022). Design and Simulation of Yagi-Uda Switched Beam Array Antenna to Enhance the Efficiency of LoRa Networks. Rajamangala University of Technology Srivijaya Research Journal, 14(2), 385–404. Retrieved from
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Author Biographies

Tanapong Khumyat, Faculty of Engineering, Rajamangala University of Technology Lanna Tak.

Faculty of Engineering, Rajamangala University of Technology Lanna Tak, Muang, Tak 63000, Thailand.

Pongnarin Sriploy, Faculty of Industrial Technology, Nakhon Ratchasima Rajabhat University.

Faculty of Industrial Technology, Nakhon Ratchasima Rajabhat University, Muang, Nakhon Ratchasima 30000, Thailand.

Peerapong Uthansakul, Institute of Engineering, Suranaree University of Technology.

Institute of Engineering, Suranaree University of Technology, Muang, Nakhon Ratchasima 30000, Thailand.


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