Highly-Isolated Compact Quad-Lobed UWB MIMO Antenna with Hexagonal Slot for Enhanced 5G and Industrial IoT Applications
| Authors | Bappadittya Roy1, Hemalatha T2 |
| Affiliations |
1School of Electronics Engineering, VIT – AP University, 522237 Inavolu, Amaravati, India 2Vijaya Institute of Technology for Women, 521108 Enikepadu, India |
| Е-mail | bappadittya.roy@vitap.ac.in |
| Issue | Volume 17, Year 2025, Number 4 |
| Dates | Received 07 April 2025; revised manuscript received 18 August 2025; published online 29 August 2025 |
| Citation | Bappadittya Roy, Hemalatha T, J. Nano- Electron. Phys. 17 No 4, 04019 (2025) |
| DOI | https://doi.org/10.21272/jnep.17(4).04019 |
| PACS Number(s) | 84.40.Ba |
| Keywords | Isolation (2) , UWB (13) , MIMO (22) , Hexagonal slot, 5G (36) , IoT (5) . |
| Annotation |
A compact Quad-Lobed Hexagonal Ring Slotted Ultra-Wideband (UWB) Multiple-Input Multiple-Output (MIMO antenna), featuring dimensions of 1.680 1.680 0.06750, is proposed to address the critical challenges associated with improving isolation in MIMO antennas. A Mutual Coupling Reduction Ring (MCRR) is introduced to improve the high isolation among the radiating elements. The design employs innovative techniques, including the use of hexagonal ring slots, to achieve an extended impedance bandwidth of 17.1 GHz. Key performance metrics such as a reflection coefficient (S11 – 10 dB), isolation (S21 – 20 dB), and diversity parameters have been thoroughly evaluated. The antenna demonstrates exceptional performance, including a maximum |S11| of 44.7 dB at 9.6 GHz, a peak gain of 9.5 dBi, ECC 0.0025, TARC – 10 dB, and a diversity gain around 10 dB. The wide impedance bandwidth and compact form factor make this design versatile for integration into modern communication systems, such as vehicular communication systems, smart healthcare equipment, ensuring reliable and high-speed data transmission. Additionally, the antenna's simple structure and efficient design minimize fabrication complexity, making it a cost-effective solution for modern wireless systems. Its adaptability across multiple frequency bands ensures seamless operation in sensor networks and autonomous systems. |
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List of References |
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