Cover
Vol. 22 No. 1 (2026)

Published: June 15, 2026

Pages: 227-232

Original Article

Reconfigurable Dual-Band Microstrip Antenna for Middle Band 5G Applications

Zahra Abbas Mahmoud 1 Ali Khalid Jassim 1 Musa Hadi Wali 2
1 Electrical Engineering Department, College of Engineering, Mustansiriyah University, Baghdad, Iraq
2 Electrical Engineering Department, College of Engineering, Qadisyah University, Diyaniya, Iraq
History
  • Received: March 22, 2024
  • Revised: May 28, 2024
  • Accepted: June 9, 2024
  • Available Online: June 15, 2026
DOI

https://doi.org/10.37917/ijeee.22.1.21

Abstract

A reconfigurable inset-fed Microstrip Patch Antenna (MPA) for dual-band behavior and stable-radiation direction has been demonstrated in this research. The suggested reconfigurable antenna has dimensions of 60×50 mm2 and is printed on an FR4 substrate that is 1.5 mm thick and has a dielectric constant (εr) and loss tangent (tanδ) equal to 4.3 and 0.02, respectively. An inset-fed line with an impedance of 50Ω is used to feed the proposed antenna structure. The parasitic capacitance is efficiently added to the proposed structure by using the slitline approach. The proposed antenna is tested and simulated, where the result shows two resonant frequencies with S11 values less than -10 dB (S11 ≤ −10). The first resonant frequency is found at 2.45 GHz with a value equal to -30.5 dB, while the second resonant is found at 3.54 GHz with a value equal to -32 dB. Moreover, the slits include two PIN diodes. After analyzing the antenna, two reconfigurable bands are obtained for various uses with stable radiation direction. The suggested antenna is constructed and measured, and the outputs of the simulation and the measurements show good agreement.

Keywords

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