A Compact T-Shaped Circular Patch Antenna For C-Band Applications
| Authors | Nageswara Rao Lavuri1 , Ambati Navya2 , S. Varalakshmi3 , Ravikumar Palla4 |
| Affiliations |
1Department of ECE, CVR College of Engineering, Hyderabad, Telangana, India 2Department of ECE, KLEF, Vaddeswaram, Guntur, Andhra Pradesh, India 3Nano Computing Department, Saveetha School of Engineering, SIMATS Engineering, Chennai 602105, India 4Department of Electronics and Communication Engineering, GMR Institute of Technology (GMRIT) – Deemed to be University, 532127 Rajam, Andhra Pradesh, India |
| Е-mail | ravikumar.p@gmrit.edu.in |
| Issue | Volume 18, Year 2026, Number 3 |
| Dates | Received 02 March 2026; revised manuscript received 22 June 2026; published online 26 June 2026 |
| Citation | Nageswara Rao Lavuri, Ambati Navya, S. Varalakshmi, et al., J. Nano- Electron. Phys. 18 No 3, 03019 (2026) |
| DOI | https://doi.org/10.21272/jnep.18(3).03019 |
| PACS Number(s) | 84.40.Ba |
| Keywords | T-shaped Circular antenna, Microstrip patch antenna, Flexible substrate, HFSS (14) , C-band Applications. |
| Annotation |
A novel dual-band T-shaped circular patch antenna (CPA) for C-band applications is designed and analysed in this article. This antenna can function in two different resonating frequencies, making the antenna appropriate for C-band wireless applications. A microstrip transmission line having an impedance of 50 Ω is utilised to feed the CPA. T-shaped CPA presents an evolution process based on a typical circular patch antenna (CPA). A finite element method-based software An-soft HFSSv13 has been utilized to extract the simulated results pertaining to radiation patterns, gain, VSWR and reflection coefficient to validate the design concept. T-shaped CPA is designed utilising polyimide substrate with εr of 3.5, a height of 0.1 mm, and overall sizes of only 38 30 mm2, which is compact in size when compared with the existing circular patch antennas. T-shaped CPA is operating over the desired bands (S11 ≤ − 10 dB) are 5.2 GHz and 6.8 GHz. 3 dBi gain of 3.1 dBi has been observed at both the resonating frequencies of the T-shaped CPA. The antennas compact design and the results obtained make them highly recommended for usage in C-band wireless communication applications. |
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