volume | PIER Journals

Abstract

This study presents a novel design for a dual-band antenna that is compact, efficient, and suitable for both WLAN and WiMAX applications. The antenna features a circular patch with a Hilbert fractal structure and a coplanar waveguide feed line, resulting in a compact size of 24x34x1.6 mm³. By utilizing a Hilbert fractal slot and defected ground structure, the antenna can operate in two frequency bands, 2.39-2.47 GHz and 3-6.32 GHz, providing coverage for the desired WiMAX and WLAN bands. The experimental results demonstrate acceptable gains and high efficiency at the resonant frequencies, along with omnidirectional radiation patterns in the H-plane and bidirectional patterns in the E-plane. Notably, this design offers a nearly 50% reduction in size compared to comparable antennas and higher gain, representing a significant contribution to the field of dual-band antenna design.

1. Kunwar, A., A. K. Gautam, B. K. Kanaujia, and K. Rambabu, "Circularly polarized D-shaped slot antenna for wireless applications," Int. J. RF Microw. Comput. Aided Eng., Vol. 29, No. 1, e21498, Jan. 2019.
doi:10.1002/mmce.21498

2. Ghaffar, A., A. Altaf, A. Aneja, et al. "A frequency reconfigurable compact planar inverted-F antenna for portable devices," International Journal of Antennas and Propagation, Vol. 2022, 7239608, Jan. 2022.

3. Cao, Y. F., S. W. Cheung, and T. I. Yuk, "A multiband slot antenna for GPS/WiMAX/WLAN systems," IEEE Trans. Antennas Propagat., Vol. 63, No. 3, 952-958, Mar. 2015.
doi:10.1109/TAP.2015.2389219

4. Ullah, S., S. Ahmad, B. A. Khan, and J. A. Flint, "A multi-band switchable antenna for Wi-Fi, 3G advanced, WiMAX, and WLAN wireless applications," Int. J. Microw. Wireless Technol., Vol. 10, No. 8, 991-997, Oct. 2018.
doi:10.1017/S1759078718000776

5. Benkhadda, O., S. Ahmad, M. Saih, K. Chaji, A. Reha, A. Ghaffar, S. Khan, M. Alibakhshikenari, and E. Limiti, "Compact broadband antenna with vicsek fractal slots for WLAN and WiMAX applications," Applied Sciences, Vol. 12, No. 3, 1142, Jan. 2022.
doi:10.3390/app12031142

6. Jo, S., H. Choi, J. Lim, B. Shin, S. Oh, and J. Lee, "A CPW-fed monopole antenna with double rectangular rings and vertical slots in the ground plane for WLAN/WiMAX applications," International Journal of Antennas and Propagation, Vol. 2015, 1-7, 2015.
doi:10.1155/2015/165270

7. Reha, A., A. El Amri, O. Benhmammouch, A. Oulad Said, A. El Ouadih, and M. Bouchouirbat, "CPW-fed slotted CANTOR Set fractal antenna for WiMAX and WLAN applications," Int. J. Microw. Wireless Technol., Vol. 9, No. 4, 851-857, May 2017.
doi:10.1017/S1759078716000635

8. Bhowmik, A. and A. Kr. Bhattacharjee, "Design of A-shaped coaxial fed compact broadband antenna for WLAN/WiMAX/UWB lower-band applications," Microw. Opt. Technol. Lett., Vol. 59, No. 4, 848-853, Apr. 2017.
doi:10.1002/mop.30411

9. Kunwar, A. and A. K. Gautam, "Fork-shaped planar antenna for Bluetooth, WLAN, and WiMAX applications," Int. J. Microw. Wireless Technol., Vol. 9, No. 4, 859-864, May 2017.
doi:10.1017/S1759078716000647

10. Ren, W., S.-W. Hu, and C. Jiang, "An ACS-fed F-shaped monopole antenna for GPS/WLAN/WiMAX applications," Int. J. Microw. Wireless Technol., Vol. 9, No. 5, 1123-1129, Jun. 2017.
doi:10.1017/S1759078716001173

11. Brar, R. S., K. Saurav, D. Sarkar, and K. V. Srivastava, "A quad-band dual-polarized monopole antenna for GNSS/UMTS/WLAN/WiMAX applications," Microw. Opt. Technol. Lett., Vol. 60, No. 3, 538-545, Mar. 2018.
doi:10.1002/mop.31008

12. Gangwar, S. P., K. Gangwar, and A. Kumar, "Dual-band modified circular slot antenna for WLAN and WiMax applications," Progress In Electromagnetics Research C, Vol. 85, 247-257, 2018.
doi:10.2528/PIERC18061805

13. Kaushal, D. and T. Shanmuganantham, "Parametric enhancement of a novel microstrip patch antenna using Circular SRR Loaded Fractal Geometry," Alexandria Engineering Journal, Vol. 57, No. 4, 2551-2557, Dec. 2018.
doi:10.1016/j.aej.2017.08.021

14. Mabaso, M. and P. Kumar, "A microstrip patch antenna with defected ground structure for triple band wireless communications," JCM, 684-688, 2019.
doi:10.12720/jcm.14.8.684-688

15. Patel, R., T. Upadhyaya, A. Desai, and M. Palandoken, "Low profile multiband meander antenna for LTE/WiMAX/WLAN and INSAT-C application," AEU — International Journal of Electronics and Communications, Vol. 102, 90-98, Apr. 2019.
doi:10.1016/j.aeue.2019.02.010

16. Park, J., M. Jeong, N. Hussain, S. Rhee, P. Kim, and N. Kim, "Design and fabrication of tripleband folded dipole antenna for GPS/DCS/WLAN/WiMAX applications," Microw. Opt. Technol. Lett., Vol. 61, No. 5, 1328-1332, May 2019.
doi:10.1002/mop.31739

17. Ghaffar, A., W. A. Awan, N. Hussain, S. Ahmad, and X. J. Li, "A compact dual-band flexible antenna for applications at 900 and 2450 MHz," Progress In Electromagnetics Research Letters, Vol. 99, 83-91, 2021.
doi:10.2528/PIERL21060601

18. Yu, Z., Z. Lin, X. Ran, Y. Li, B. Liang, X. Wang, and , "A novel “回” pane structure multiband microstrip antenna for 2G/3G/4G/5G/WLAN/navigation applications," International Journal of Antennas and Propagation, Vol. 2021, 1-15, Jun. 2021.

19. Elkorany, A. S., A. N. Mousa, S. Ahmad, D. A. Saleeb, A. Ghaffar, M. Soruri, M. Dalarsson, M. Alibakhshikenari, and E. Limiti, "Implementation of a miniaturized planar tri-band microstrip patch antenna for wireless sensors in mobile applications," Sensors, Vol. 22, No. 2, 667, Jan. 2022.
doi:10.3390/s22020667

20. Karmakar, A., R. Ghatak, D. R. Poddar, and U. Banerjee, "Complementary stacked patch antenna with fractal shape defect for wideband characteristics," Microw. Opt. Technol. Lett., Vol. 56, No. 4, 944-947, Apr. 2014.
doi:10.1002/mop.28231

21. Chu, H. B. and H. Shirai, "A compact metamaterial quad-band antenna based on asymmetric E-CRLH unit cells," Progress In Electromagnetics Research C, Vol. 81, 171-179, 2018.
doi:10.2528/PIERC17111605

22. Thamil Selvi, N., P. Thiruvalar Selvan, S. P. K. Babu, and R. Pandeeswari, "Multiband metamaterial-inspired antenna using split ring resonator," Computers & Electrical Engineering, Vol. 84, 106613, Jun. 2020.
doi:10.1016/j.compeleceng.2020.106613

23. Mahendran, K., R. Gayathri, and H. Sudarsan, "Design of multi band triangular microstrip patch antenna with triangular split ring resonator for S band, C band and X band applications," Microprocessors and Microsystems, Vol. 80, 103400, Feb. 2021.
doi:10.1016/j.micpro.2020.103400

24. Yeboah-Akowuah, B., E. T. Tchao, M. Ur-Rehman, M. M. Khan, S. Ahmad, and , "Study of a printed split-ring monopole for dual-spectrum communications," Heliyon, Vol. 7, No. 9, e07928, Sept. 2021.
doi:10.1016/j.heliyon.2021.e07928

25. Patel, U. and T. K. Upadhyaya, "Design and analysis of compact μ-negative material loaded wideband electrically compact antenna for WLAN/WiMax applications," Progress In Electromagnetics Research M, Vol. 79, 11-22, 2019.
doi:10.2528/PIERM18121502

26. Balanis, C. A., Antenna Theory: Analysis and Design, 4th Ed., John Wiley, 2016.

27. Hilbert, D., "Ueber die stetige Abbildung einer Line auf ein Flachenstuck," Math. Ann., Vol. 38, No. 3, 459-460, Sept. 1891.
doi:10.1007/BF01199431

Dr. Omaima Benkhadda

Dr. Mohamed Saih

Dr. Kebir Chaji

Dr. Sarosh Ahmad

Dr. Abdelati Reha