Cover
Vol. 15 No. 2 (2024)

Published: November 15, 2024

Pages: 100-111

Research Paper

Miniaturized Multiband Reconfigurable Antenna at Sub-6 and mm-Wave Band Based on Fractal Geometry

Shimaa wole 1 Mohammed Al Mashhadani 2
1Tikrit University, Electrical Engineering Dept. Iraq
2b Department of the Electrical Engineering, College of Engineering, University of Tikrit, Iraq
History
  • Received: July 10, 2024
  • Revised: August 14, 2024
  • Accepted: December 12, 2024
  • Available Online: December 14, 2024
DOI

https://doi.org/10.37649/aengs.2024.151688.1091

Abstract

This work presents a compact reconfigurable antenna based on fractal geometry. The investigation discusses the challenges of lower antenna gain and bandwidth, critical for efficient data propagation in 5G systems, particularly for low-profile devices. Its goal is to develop a small, multiband antenna capable of operating in all current and future 5G bands and improve bandwidth and gain for mm-wave and sub-6 GHz applications. The proposed design covers the sub-6 band (2.8, 3.9, 4, 6.2) GHz and the mm-wave band (24.4, 27.1, 28.5, 29.3, 30.6, 33.9, 34.6, 35.2, 38.8, 44.4, 45.1, 59.7, 61.5, 62.3, 65.2, 67.4 and 69.5) GHz with S11 less than -10 dB. A maximum gain of 12.8 dB and a radiation efficiency of 94% are achieved. A partial ground plane with a 50 Ω feed line is used in this design. The antenna is printed on a Roger RT 5880 substrate with a relative dielectric constant 2.2 with a total dimension of 35×32.5×0.8 mm³. The proposed design is simulated using CST software, ensuring accurate calculations and performance evaluation.

Keywords

References

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