Compact Broadband Microstrip Patch Antenna for 5G Communication Applications
| Authors | Tapas Tewary1 , Sunandan Bhunia2 |
| Affiliations |
1Department of ECE, Academy of Technology, West Bengal, India 2Department of ECE, Central Institute of Technology Kokrajhar, Assam, India |
| Е-mail | bhuniasunandan@gmail.com |
| Issue | Volume 17, Year 2025, Number 4 |
| Dates | Received 20 April 2025; revised manuscript received 20 August 2025; published online 29 August 2025 |
| Citation | Tapas Tewary, Sunandan Bhunia, J. Nano- Electron. Phys. 17 No 4, 04020 (2025) |
| DOI | https://doi.org/10.21272/jnep.17(4).04020 |
| PACS Number(s) | 84.40.Ba |
| Keywords | Broadband, Microstrip patch antenna, Rogers RO473G3, Slot (2) . |
| Annotation |
Recently, the Microstrip Patch Antenna (MPA) has gained prominence in different wireless communication systems as well as in 5G communication. Despite various advantages, a primary disadvantage of MPA that limits its applications is its low bandwidth. This research implements a broadband antenna with satisfactory gain by utilizing a shortened ground plane and incorporating several slots in the radiating plane. In order to achieve numerous frequency bands, slots are added to the patch. The dimensions of the slots are selected to allow for the staggering effect of the closely spaced frequency bands, which results in broadband properties. To ensure appropriate impedance matching, the ground plane is altered. The suggested antenna provides a wide impedance bandwidth of 4 GHz (3-7 GHz) with a fractional bandwidth of 80 %, resonating at 3.6 and 5.5 GHz. Within this frequency range, the proposed antenna exhibits a peak gain between 2.2 and 3.2 dBi, alongside a maximum radiation efficiency of 90 %. Additionally, adequate co-polarization and cross-polarization separation are attained in all directions for the proposed antenna. The exhibited broadband antenna features a symmetrical radiation pattern. The designed antenna is compact and lightweight, exhibits consistent gain, and is compatible with wireless system equipment. The antenna is designed on a 1.542 mm-thick Rogers RO473G3 dielectric substrate, featuring a loss tangent of 0.0022 and a relative permittivity of 3. The proposed antenna is suitable for n77, n78, and n79 5G communication applications since it is part of UWB wireless technology, characterized by its broadband capabilities, high radiation efficiency, and satisfactory radiation pattern. The proposed antenna is developed, optimized, and simulated with Computer Simulation Technology's (CST) Microwave Studio Suite software. |
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