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108 |                                                          Abdulzahra, Alnahwi & Abdullah

Fig. 11. The OFF-state surface current distribution at a- 3
GHz, b- 6 GHz.

[21] C. A. Balanis, “Antenna theory analysis and design, john  Fig. 12. The ON-state surface current distribution at a- 3.4
      wiley & sons,” 4th edition, 2016.                        GHz, b- 6 GHz, c- 7.8 GHz.

[22] S. Bri and A. Saadi, “Reconfigurable ultra wideband             Computer Aided Engineering, vol. 31, no. 7, p. 22692,
      to narrowband antenna for cognitive radio applications         2021.
      using pin diode,” Telecommunication Computing Elec-
      tronics and Control, vol. 18, no. 6, pp. 2807–2814.      [29] N. Hussain, A. Ghaffar, S. Naqvi, A. Iftikhar, D. E.
                                                                     Anagnostou, and H. H. Tran, “A conformal frequency
[23] C. C. S. T. B. on FIT Method 2018.                              reconfigurable antenna with multiband and wideband
                                                                     characteristics,” Sensors, vol. 22, no. 7, p. 2601, 2022.
[24] Y. Cai, K. Li, Y. Yin, S. Gao, W. Hu, and L. Zhao, “A
      low-profile frequency reconfigurable grid-slotted patch  [30] M. Bitchikh, W. Rili, and M. Mokhtar, “An uwb to
      antenna,” IEEE Access, vol. 6, pp. 36305–36312, 2018.          narrow band and bi-bands reconfigurable octogonal an-
                                                                     tenna,” Progress in Electromagnetics Research Letters,
[25] L. Han, C. Wang, X. Chen, and W. Zhang, “Compact                vol. 74, pp. 69–75, 2018.
      frequency-reconfigurable slot antenna for wireless ap-
      plications,” IEEE Antennas and Wireless Propagation      [31] M. Lim, S. Rahim, M. Hamid, P. Soh, M. Sabran,
      Letters, vol. 15, pp. 1795–1798, 2016.                         A. Eteng, and M. Ramli, “Single-, dual-and wide-
                                                                     band frequency-reconfigurable antenna with annular ring
[26] K. Saraswat and A. Harish, “Flexible dual-band dual-            slots,” The Applied Computational Electromagnetics
      polarised cpw fed monopole antenna with discrete-              Society Journal (ACES), vol. 32, no. 11, pp. 987–993,
      frequency reconfigurability,” IET Microwaves, Antennas         2017.
      & Propagation, vol. 13, no. 12, pp. 2053–2060.

[27] I. Idris, M. R. Hamid, K. Kamardin, and M. Rahim, “A
      multi to wideband frequency reconfigurable antenna,”
      International Journal of RF and Microwave Computer
      Aided Engineering, vol. 28, no. 4, p. 21216, 2018.

[28] R. Mathur and S. Dwari, “Frequency and port reconfig-
      urable mimo antenna for uwb/5g/wlan band iot appli-
      cations,” International Journal of RF and Microwave
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