Dual-Band Double Circular Patch Antenna on Multilayer Substrate


  • Netilak Phanchin School of Engineering, King Mongkut’s Institute of Technology Ladkrabang
  • Kittima Lertsakwimarn Faculty of Industrial Technology and Management, King Mongkut’s University of Technology North Bangkok, Prachinburi Campus
  • Supakit Kawdungta Faculty of Engineering, Rajamangala University of Technology Lanna, Chang Phueak, Muang, Chiang Mai
  • Pichaya Supanakoon School of Engineering, King Mongkut’s Institute of Technology Ladkrabang
  • Chuwong Phongcharoenpanich School of Engineering, King Mongkut’s Institute of Technology Ladkrabang


Dual-band antenna, multilayer substrate, patch antenna, wireless local area network (WLAN)


This paper presents a dual-band antenna for a wireless local area network (WLAN) system with the frequency of 2.4–2.5 GHz and 5–6 GHz. The proposed antenna is a patch antenna consisting of two circular radiation plates. They are stacked above and below the multilayer substrate, connected by wire, and fed by the coaxial probe. From simulated and measured results, the proposed antenna has an input impedance close to 50 W and |S11| below -10 dB in a frequency of 2.4–2.5 GHz and 5.0-5.3 GHz, the gain is 1.9 dBi at 2.45 GHz and 2.36 dBi at 5.2 GHz, respectively. The antenna can be effectively used in both frequency bands of wireless local area networks.


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How to Cite

N. . Phanchin, K. . Lertsakwimarn, S. . . Kawdungta, P. . Supanakoon, and C. . Phongcharoenpanich, “Dual-Band Double Circular Patch Antenna on Multilayer Substrate”, Ladkrabang Engr J, vol. 39, no. 2, pp. 44–52, Jun. 2022.



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