volume | PIER Journals

Abstract

In this paper, a novel monopole broadband dual-band antenna design for wireless communication systems is proposed, with its fabrication and experimental validation presented. To significantly enhance impedance matching performance, the antenna employs a T-shaped feed slot resonant structure integrated with symmetric L-shaped radiating patches. It covers critical Sub-6 GHz bands (N41/N77/N78/N79) along with Wi-Fi 5 and Wi-Fi 6 spectrums. Notably, the N41 band, as a core 5G frequency band, possesses advantages such as wide bandwidth, strong penetration capability, and flexible deployment, rendering it ideal for urban coverage and high-speed transmission. Experimental results demonstrate that the antenna achieves a -10 dB impedance bandwidth spanning 2.43-2.72 GHz and 3.31-7.32 GHz, with a peak gain of 5.48 dB under omnidirectional radiation characteristics. Its compact design is suitable for miniaturized terminal devices, exhibiting high practical value in 5G Sub-6 GHz and multi-band wireless communication applications.

1. Lee, Juho, Erika Tejedor, Karri Ranta-Aho, Hu Wang, Kyung-Tak Lee, Eliane Semaan, Eiman Mohyeldin, Juyeon Song, Christian Bergljung, and Sangyeob Jung, "Spectrum for 5G: Global status, challenges, and enabling technologies," IEEE Communications Magazine, Vol. 56, No. 3, 12-18, Mar. 2018.
doi:10.1109/mcom.2018.1700818 Google Scholar

2. Deng, Der-Jiunn, Shao-Yu Lien, Chun-Cheng Lin, Ming Gan, and Hsing-Chung Chen, "IEEE 802.11ba wake-up radio: Performance evaluation and practical designs," IEEE Access, Vol. 8, 141547-141557, Jul. 2020.
doi:10.1109/access.2020.3013023 Google Scholar

3. Liu, Guangyi, Xeuying Hou, Youhong Huang, Hua Shao, Yi Zheng, Fei Wang, and Qixing Wang, "Coverage enhancement and fundamental performance of 5G: Analysis and field trial," IEEE Communications Magazine, Vol. 57, No. 6, 126-131, Jun. 2019.
doi:10.1109/mcom.2019.1800543 Google Scholar

4. Miao, Haiyang, Jianhua Zhang, Pan Tang, Lei Tian, Xinyu Zhao, Bolun Guo, and Guangyi Liu, "Sub-6 GHz to mmWave for 5G-advanced and beyond: Channel measurements, characteristics and impact on system performance," IEEE Journal on Selected Areas in Communications, Vol. 41, No. 6, 1945-1960, Jun. 2023.
doi:10.1109/jsac.2023.3274175 Google Scholar

5. Faouri, Yanal S., Sarosh Ahmad, Naser Ojaroudi Parchin, Chan Hwang See, and Raed Abd-Alhameed, "A novel meander bowtie-shaped antenna with multi-resonant and rejection bands for modern 5G communications," Electronics, Vol. 11, No. 5, 821, 2022.
doi:10.3390/electronics11050821 Google Scholar

6. Awan, Wahaj Abbas, Syeda Iffat Naqvi, Wael Abd Ellatif Ali, Niamat Hussain, Amjad Iqbal, Huy Hung Tran, Mohammad Alibakhshikenari, and Ernesto Limiti, "Design and realization of a frequency reconfigurable antenna with wide, dual, and single-band operations for compact sized wireless applications," Electronics, Vol. 10, No. 11, 1321, 2021.
doi:10.3390/electronics10111321 Google Scholar

7. Zebiri, Chemseddine, Djamel Sayad, Issa Elfergani, Amjad Iqbal, Widad F. A. Mshwat, Jamal Kosha, Jonathan Rodriguez, and Raed Abd-Alhameed, "A compact semi-circular and arc-shaped slot antenna for heterogeneous RF front-ends," Electronics, Vol. 8, No. 10, 1123, 2019.
doi:10.3390/electronics8101123 Google Scholar

8. Paul, Liton Chandra, Sarker Saleh Ahmed Ankan, Tithi Rani, Md. Tanvir Rahman Jim, Muharrem Karaaslan, Sk. A. Shezan, and Lulu Wang, "Design and characterization of a compact four-element microstrip array antenna for WiFi-5/6 routers," International Journal of RF and Microwave Computer-aided Engineering, Vol. 2023, No. 1, 6640730, 2023.
doi:10.1155/2023/6640730 Google Scholar

9. Zehforoosh, Ayda and Yashar Zehforoosh, "Evaluation of a novel hook-shaped multiband monopole antenna based on the AHP method," IET Communications, Vol. 16, No. 3, 266-273, 2022.
doi:10.1049/cmu2.12345 Google Scholar

10. Huang, He, Ying Liu, Shaoshuai Zhang, and Shuxi Gong, "Multiband metamaterial-loaded monopole antenna for WLAN/WiMAX applications," IEEE Antennas and Wireless Propagation Letters, Vol. 14, 662-665, 2015.
doi:10.1109/lawp.2014.2376969 Google Scholar

11. Gao, Feng and Hucheng Sun, "A radiation-pattern reconfigurable antenna array for vehicular communications," Sensors, Vol. 24, No. 13, 4136, 2024.
doi:10.3390/s24134136 Google Scholar

12. Qing, Xianming and Zhi Ning Chen, "Compact asymmetric-slit microstrip antennas for circular polarization," IEEE Transactions on Antennas and Propagation, Vol. 59, No. 1, 285-288, 2011.
doi:10.1109/tap.2010.2090468 Google Scholar

13. Sah, Bharat K., Geetanjali Singla, and Surbhi Sharma, "Design and development of enhanced bandwidth multi-frequency slotted antenna for 4G-LTE/WiMAX/WLAN and S/C/X-band applications," International Journal of RF and Microwave Computer-Aided Engineering, Vol. 30, No. 7, e22214, 2020.
doi:10.1002/mmce.22214 Google Scholar

14. Chang, Tze-Hsuan and Jean-Fu Kiang, "Compact multi-band H-shaped slot antenna," IEEE Transactions on Antennas and Propagation, Vol. 61, No. 8, 4345-4349, 2013.
doi:10.1109/tap.2013.2262666 Google Scholar

15. Chen, Kangjian, Chenhao Qi, and Octavia A. Dobre, "DBRAA: Sub-6 GHz and millimeter wave dual-band reconfigurable antenna array for ISAC," IEEE Transactions on Communications, Vol. 73, No. 5, 3215-3228, 2025.
doi:10.1109/tcomm.2025.3567007 Google Scholar

16. Haripriya, Dhuddu, S. Venkatakiran, and A. Gokulachandar, "UWB-MIMO antenna of high isolation two elements with WLAN single band-notched behavior using roger material," Materials Today: Proceedings, Vol. 62, 1717-1721, 2022.
doi:10.1016/j.matpr.2021.12.203 Google Scholar

17. Kumar, Akhilesh, Nagesh Kallollu Narayaswamy, H. Venkatesh Kumar, Brijesh Mishra, Shadab Azam Siddique, and Ajay Kumar Dwivedi, "High-isolated WiFi-2.4 GHz/LTE MIMO antenna for RF-energy harvesting applications," AEU --- International Journal of Electronics and Communications, Vol. 141, 153964, 2021.
doi:10.1016/j.aeue.2021.153964 Google Scholar

18. Xu, Rui, Jian-Ying Li, Jiang-Jun Yang, Kun Wei, and Yang-Xiao Qi, "A design of U-shaped slot antenna with broadband dual circularly polarized radiation," IEEE Transactions on Antennas and Propagation, Vol. 65, No. 6, 3217-3220, 2017.
doi:10.1109/tap.2017.2689069 Google Scholar

19. Liu, Xiaoming, Haiyang Wang, Xiaofan Yang, and Jinhong Wang, "Quad-band circular polarized antenna for GNSS, 5G and WIFI-6E applications," Electronics, Vol. 11, No. 7, 1133, 2022.
doi:10.3390/electronics11071133 Google Scholar

20. Xu, Rui, Jianying Li, Yang-Xiao Qi, Yang Guangwei, and Jiang-Jun Yang, "A design of triple-wideband triple-sense circularly polarized square slot antenna," IEEE Antennas and Wireless Propagation Letters, Vol. 16, 1763-1766, 2017.
doi:10.1109/lawp.2017.2674677 Google Scholar

21. Paul, Liton Chandra, Md. Hossain Ali, Tithi Rani, Himel Kumar Saha, and Md. Tanvir Rahman Jim, "A sixteen-element dual band compact array antenna for ISM/Bluetooth/Zigbee/WiMAX/WiFi-2.4/5/6 GHz applications," Heliyon, Vol. 8, No. 11, e11675, 2022.
doi:10.1016/j.heliyon.2022.e11675 Google Scholar

22. El Halaoui, Mustapha, Abdelmoumen Kaabal, Hassan Asselman, Saida Ahyoud, and Adel Asselman, "Dual-band planar inverted-F antenna with enhanced bandwidth by adding a T-shaped slot and a two elements for mobile phone applications," Progress In Electromagnetics Research C, Vol. 59, 149-158, 2015.
doi:10.2528/pierc15081805 Google Scholar

23. Yu, Zhen, Jianguo Yu, Xiaoying Ran, and Chenhua Zhu, "A novel Koch and Sierpinski combined fractal antenna for 2G/3G/4G/5G/WLAN/navigation applications," Microwave and Optical Technology Letters, Vol. 59, No. 9, 2147-2155, 2017.
doi:10.1002/mop.30698 Google Scholar

24. Tiwari, Rakesh N., Prabhakar Singh, Shivam Pandey, Ritika Anand, Dinesh Kumar Singh, and Binod Kumar Kanaujia, "Swastika shaped slot embedded two port dual frequency band MIMO antenna for wireless applications," Analog Integrated Circuits and Signal Processing, Vol. 109, No. 1, 103-113, 2021.
doi:10.1007/s10470-021-01923-x Google Scholar

25. Kumar, Munish and Vandana Nath, "Design and development of triple-band compact ACS-fed MIMO antenna for 2.4/3.5/5 GHz WLAN/WiMAX applications," Analog Integrated Circuits and Signal Processing, Vol. 103, No. 3, 461-470, 2020.
doi:10.1007/s10470-020-01626-9 Google Scholar

26. Aziz, Haneen Sobhi and Dhirgham Kamal Naji, "Compact dual-band MIMO antenna system for LTE smartphone applications," Progress In Electromagnetics Research C, Vol. 102, 13-30, 2020.
doi:10.2528/pierc20021101 Google Scholar

27. Kulkarni, Neeta P., Nilesh Bhaskarrao Bahadure, P. D. Patil, and Jayshri S. Kulkarni, "Flexible interconnected 4-port MIMO antenna for Sub-6 GHz 5G and X band applications," AEU --- International Journal of Electronics and Communications, Vol. 152, 154243, 2022.
doi:10.1016/j.aeue.2022.154243 Google Scholar

28. Joseph, Jeevitha and Gunamony Shine Let, "A wideband uniplanar ground-centered dual-polarized quad MIMO for Sub-6 GHz 5G bands," Arabian Journal for Science and Engineering, Vol. 48, No. 11, 15139-15152, 2023.
doi:10.1007/s13369-023-08039-6 Google Scholar

29. Addepalli, Tathababu, "Compact MIMO diversity antenna for 5G Sub: 6 GHz (N77/N78 and N79) and WLAN (Wi-Fi 5 and Wi-Fi 6) band applications," Wireless Personal Communications, Vol. 132, No. 3, 2203-2223, 2023.
doi:10.1007/s11277-023-10718-4 Google Scholar

30. Addepalli, Tathababu, Maragani Satish Kumar, Chandrasekhar Rao Jetti, Naveen Kumar Gollamudi, Bandi Kiran Kumar, and Jayshri Kulkarni, "Fractal loaded, novel, and compact two- and eight-element high diversity MIMO antenna for 5G Sub-6 GHz (N77/N78 and N79) and WLAN applications, verified with TCM analysis," Electronics, Vol. 12, No. 4, 952, 2023.
doi:10.3390/electronics12040952 Google Scholar

Dr. Zhengting Zhang

Professor Han Lin

Dr. Chenlu Li

Dr. Xiaoyan Wei