A Compact Octagonal Shaped Antenna for ISM Band Applications
| Authors | Boya Gayathri, Usha Devi Yalavarthi, B. T. P. Madhav, Male Srinivasa Rao |
| Affiliations | |
| Е-mail | ushadevi.yalavarthi@kluniversity.in |
| Issue | Volume 18, Year 2026, Number 5 |
| Dates | Received 05 June 2026; revised manuscript received 18 October 2026; published online 28 October 2026 |
| Citation | Boya Gayathri, Usha Devi Yalavarthi[footnoteRef:], B. T. P. Madhav, Male Srinivasa Rao, J. Nano- Electron. Phys. 18 No 5, 05030 (2026) |
| DOI | https://doi.org/10.21272/jnep.18(5).05030 |
| PACS Number(s) | 84.40.Ba |
| Keywords | Patch antenna (2) , Frequency (15) , ISM band applications, Octagonal tree mode. |
| Annotation |
This article discusses how wireless communication systems use small, effective antennas to send and receive signals. Because of their small size, low profile and ease of fabrication, micro strip feed line patch antennas have become more and more common. They have been successfully constructed with partial ground plane for ISM band applications. The antenna is built on FR4 substrate with relative permittivity of 4.3 and thickness of 1.6mm. Its dimensions are 50 mm х 50 mm х 1.6 mm. An inset feed line, which offers a small and effective feeding mechanism, feeds the antenna. The performance of antenna has been evaluated using the HFSS 21.0 version. The planned antenna achieved – 10 dB impedance bandwidth of 1 GHz, stretching from 2.4 GHz to 5.8 GHz, with a return loss of – 18 dB at 2.4 GHz and – 34 dB at 5.8 GHz. It also shows improvements of 14 and 11 dB peak gain at 2.4 GHz and 5.8 GHz respectively with about 93 % radiation efficiency. Numerous wireless communication standards are compatible with the antenna. |
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