volume | PIER Journals

Abstract

A compact wideband antenna with a multi-slot configuration is proposed for radar, military, and modern wireless communication systems. The antenna is fabricated on an FR-4 substrate with overall dimensions of 14 × 16 × 1.5 mm³, corresponding to a miniaturized electrical size of 0.163λ × 0.187λ × 0.017λ₀ at 3.5 GHz. To achieve broad impedance bandwidth and improved matching, multiple slots are etched on both the patch and ground surfaces. Experimental validation shows that the antenna effectively covers the 3.5-14 GHz frequency range, offering nearly 120% fractional bandwidth. Within this spectrum, it delivers a peak gain of 5.1 dB and a maximum radiation efficiency of about 89%, ensuring stable and low-loss performance. The compact structure maintains consistent radiation characteristics, making it suitable for portable and defense-oriented devices. Its ability to support Sub-6 GHz and 5G bands further enhances its applicability in next-generation communication platforms.

1. Mishra, Brijesh, Ramesh Kumar Verma, Rakesh Kumar Singh, et al. "A review on microstrip patch antenna parameters of different geometry and bandwidth enhancement techniques," International Journal of Microwave and Wireless Technologies, Vol. 14, No. 5, 652-673, 2022.
doi:10.1017/s1759078721001148 Google Scholar

2. Przesmycki, Rafal, Marek Bugaj, and Leszek Nowosielski, "Broadband microstrip antenna for 5G wireless systems operating at 28 GHz," Electronics, Vol. 10, No. 1, 1, 2021.
doi:10.3390/electronics10010001 Google Scholar

3. Imran, D., M. M. Farooqi, M. I. Khattak, Z. Ullah, M. I. Khan, M. A. Khattak, and H. Dar, "Millimeter wave microstrip patch antenna for 5G mobile communication," 2018 International Conference on Engineering and Emerging Technologies (ICEET), 1-6, Lahore, Pakistan, 22-23 February 2018.
doi:10.1109/ICEET1.2018.8338623

4. Khidre, Ahmed, Kai-Fong Lee, Atef Z. Elsherbeni, and Fan Yang, "Wide band dual-beam U-slot microstrip antenna," IEEE Transactions on Antennas and Propagation, Vol. 61, No. 3, 1415-1418, 2013.
doi:10.1109/tap.2012.2228617 Google Scholar

5. Baudha, Sudeep, Kannan Kapoor, and Manish Varun Yadav, "U-shaped microstrip patch antenna with partial ground plane for mobile satellite services (MSS)," 2019 URSI Asia-Pacific Radio Science Conference (AP-RASC), 1-5, New Delhi, India, 09-15 March 2019.
doi:10.23919/URSIAP-RASC.2019.8738196

6. Kurniawan, Adit and Salik Mukhlishin, "Wideband antenna design and fabrication for modern wireless communications systems," Procedia Technology, Vol. 11, 348-353, 2013.
doi:10.1016/j.protcy.2013.12.201 Google Scholar

7. Ghosh, Abhijyoti, Sudip Kumar Ghosh, Dia Ghosh, and Sudipta Chattopadhyay, "Improved polarization purity for circular microstrip antenna with defected patch surface," International Journal of Microwave and Wireless Technologies, Vol. 8, No. 1, 89-94, 2016.
doi:10.1017/s1759078714001305 Google Scholar

8. Verma, Shivangi, Leena Mahajan, Rajesh Kumar, Hardeep Singh Saini, and Naveen Kumar, "A small microstrip patch antenna for future 5G applications," 2016 5th International Conference on Reliability, Infocom Technologies and Optimization (Trends and Future Directions) (ICRITO), 460-463, Noida, India, 07-09 September 2016.
doi:10.1109/ICRITO.2016.7784999

9. Akyildiz, Ian F., Chong Han, and Shuai Nie, "Combating the distance problem in the millimeter wave and terahertz frequency bands," IEEE Communications Magazine, Vol. 56, No. 6, 102-108, Jun. 2018.
doi:10.1109/mcom.2018.1700928 Google Scholar

10. Akyildiz, Ian F., Josep Miquel Jornet, and Chong Han, "Terahertz band: Next frontier for wireless communications," Physical Communication, Vol. 12, 16-32, 2014.
doi:10.1016/j.phycom.2014.01.006 Google Scholar

11. Han, Chong and Yi Chen, "Propagation modeling for wireless communications in the terahertz band," IEEE Communications Magazine, Vol. 56, No. 6, 96-101, Jun. 2018.
doi:10.1109/mcom.2018.1700898 Google Scholar

12. Deshmukh, Amit A., Divya Singh, Priyal Zaveri, Mohil Gala, and K. P. Ray, "Broadband slot cut rectangular microstrip antenna," Procedia Computer Science, Vol. 93, 53-59, 2016.
doi:10.1016/j.procs.2016.07.181 Google Scholar

13. Hota, Satyabrat, Manish Varun Yadav, Sudeep Baudha, and B. B. Mangaraj, "Miniaturized planar ultra-wideband patch antenna with semi-circular slot partial ground plane," 2019 IEEE Indian Conference on Antennas and Propogation (InCAP), 1-4, Ahmedabad, India, 2019.
doi:10.1109/InCAP47789.2019.9134577

14. Baudha, Sudeep, Harshit Garg, and Manish Varun Yadav, "Dumbbell shaped microstrip broadband antenna," Journal of Microwaves, Optoelectronics and Electromagnetic Applications, Vol. 18, 33-42, 2019.
doi:10.1590/2179-10742019v18i11371 Google Scholar

15. Yadav, Manish Varun, Swati Varun Yadav, Tanweer Ali, Sounik Kiran Kumar Dash, Navya Thirumaleshwar Hegde, and Vishnu G. Nair, "A cutting-edge S/C/X band antenna for 5G and beyond application," AIP Advances, Vol. 13, 105123, 2023.
doi:10.1063/5.0177355 Google Scholar

16. Mazinani, S. Maryam and Hamid Reza Hassani, "A novel broadband plate-loaded planar monopole antenna," IEEE Antennas and Wireless Propagation Letters, Vol. 8, 1123-1126, 2009.
doi:10.1109/lawp.2009.2033952 Google Scholar

17. Kim, Gyeong-Ho and Tae-Yeoul Yun, "Compact ultrawideband monopole antenna with an inverted-L-shaped coupled strip," IEEE Antennas and Wireless Propagation Letters, Vol. 12, 1291-1294, 2013.
doi:10.1109/lawp.2013.2283863 Google Scholar

18. Yadav, Swati Varun, Manish Varun Yadav, Tanweer Ali, Sounik Kiran Kumar Dash, Navya Thirumaleshwar Hegde, and Vishnu G. Nair, "A circular compact ultra‐wideband antenna for 5G microwave applications," TELKOMNIKA (Telecommunication Computing Electronics and Control), Vol. 22, No. 3, 556-566, 2024.
doi:10.12928/telkomnika.v22i3.25852 Google Scholar

19. Gupta, Ridhi, Manish Varun Yadav, and Swati Varun Yadav, "TL-shaped circular parasitic compact planar antenna for 5G microwave applications," International Conference on Electrical and Electronics Engineering, 507-515, R. N. Shaw et al. (eds.), Springer, Singapore, 2024.
doi:10.1007/978-981-99-8289-9_38

Dr. Swati Varun Yadav

Dr. Manish Varun Yadav

Dr. Himanshu Gupta

Dr. Vikas Gupta