Multiband Microstrip Patch Antenna Using Artificial Magnetic Conductor with Enhanced Bandwidth and Gain for Wireless Applications
| Authors | S.Thilagavathi, R.Sudhakar |
| Affiliations |
Department of ECE, Dr. Mahalingam College of Engineering and Technology, Pollachi, India |
| Е-mail | thilagavathi.sta@gmail.com |
| Issue | Volume 17, Year 2025, Number 5 |
| Dates | Received 05 August 2025; revised manuscript received 21 October 2025; published online 30 October 2025 |
| Citation | S.Thilagavathi, R.Sudhakar, J. Nano- Electron. Phys. 17 No 5, 05007 (2025) |
| DOI | https://doi.org/10.21272/jnep.17(5).05007 |
| PACS Number(s) | 84.40.Ba |
| Keywords | Artificial magnetic conductor, Frequency selective surface, Gain (9) , High impedance surface, Impedance bandwidth, Radiation pattern, Reflection phase. |
| Annotation |
In this paper, a Multiband Microstrip patch antenna is designed and simulated using Artificial Magnetic Conductor (AMC) as a ground plane. The AMC acting as a High Impedance Surface (HIS) or Frequency Selective Surface (FSS) is a triple band structure constructed on a 3.2mm thick Rogers RT_Duroid 5880 substrate (r2.2) with 00 reflection phase at three different resonant frequencies 5.52GHz, 11.12GHz and 14.09GHz. The return loss characteristics of Microstrip patch antenna with and without Single band and Dual band AG structures are also simulated. The simulation results obtained using Advance Design System (ADS) 2024 shows that the Microstrip patch antenna placed above AMC structure provides better performance characterizations in terms of bandwidth and gain, reduces the size of an antenna and improves radiation patterns. The impedance bandwidths at multiple frequencies obtained by the proposed antenna are 14 % (4.67–5.4GHz), 6.3 % (6.15–6.55GHz), 4.3 % (8.55–8.93GHz), 6.4 % (9.25–9.88GHz) and 2.8 % (12.19–12.54GHz). It is proved that the gain is in-creased from 7.32dBi to 11.91dBi when the AMC is used as a ground plane for the microstrip patch antenna. The proposed antenna is suitable for C-band and X-band applications, 5GHz WLAN and Wi-Fi applications. |
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