Performance Enhancement of Microstrip Circular Ring Dual-Band Patch Antenna with Minimum Reflection for Effective Wireless Communication Applications
| Authors | Sivanagireddy Kalli1 , Yerram Srinivas2, Srilakshmi Aouthu3, V. Sidda Reddy4 , Babji Prasad Chapa5, Mahesh Valathuru6 , Nagandla Prasad5 |
| Affiliations |
1Department of Electronics and Communication Engineering, Sridevi Women's Engineering College, Hyderabad, Telangana, India 2Department Electronics and Communication Engineering, Vignana Bharathi Institute of Technology, Hyderabad, Telangana, India 3Department Electronics and Communication Engineering, Vasavi College of Engineering, Hyderabad, Telangana, India 4Department of IT, Stanley College of Engineering and Technology for Women, 500001 Hyderabad, Telangana, India 5Department of Electronics and Communication Engineering, GMR Institute of Technology, 532127 Rajam, Andhra Pradesh, India 6ALRC Research Centre, Department of ECE, Koneru Lakshmaiah Education Foundation, Guntur, Andhra Pradesh, India |
| Е-mail | babjiprasad.ch@gmrit.edu.in |
| Issue | Volume 17, Year 2025, Number 4 |
| Dates | Received 12 April 2025; revised manuscript received 22 August 2025; published online 29 August 2025 |
| Citation | Sivanagireddy Kalli1, Yerram Srinivas, et al., J. Nano- Electron. Phys. 17 No 4, 04021 (2025) |
| DOI | https://doi.org/10.21272/jnep.17(4).04021 |
| PACS Number(s) | 84.40.Ba |
| Keywords | Antenna (6) , Dual band, Gain (9) , VSWR (4) , Radiation efficiency. |
| Annotation |
This article proposed a compact dual band circular ring patch antenna designed for wireless communication applications. This novel method improves performance metrics by incorporating a rectangular slot into the patch, which enables operation over two different frequency bands. The addition of the slot significantly increases the return loss of the antenna, which is essential for effective wireless communication. The optimal dimensions of the proposed antenna are 15 x 15 x 2.07 mm3. The FR-4 substrate used in the prescribed design provides a cost-effective, affordable, reliable, and emergency-useful option. The suggested antenna design achieves excellent performance despite its small size by operating effectively at both 6.9 GHz and 12.2 GHz. The prescribed structure offering a bandwidth of 0.5 GHz (6.7-7.2 GHz) at 6.9 GHz and 0.6 GHz (11.9-12.5 GHz) at 12.2 GHz, along with an improved return loss of – 41 dB and – 42 dB, VSWR of 1.02 and 1.01 at resonance. These characteristics enhance the impedance matching at the respective frequencies. The simulated radiation efficiencies are 80 % and 89 %, respectively. In addition, the peak-gain of the prescribed antenna is 9.9 dBi and 9.92 dBi at the desired frequency bands. This design is perfect for wireless communication applications since it is simple, compact, and easy to carry. It also allows seamless operation over two separate frequency bands with minimum reflections. |
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List of References |
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