Compact Snow-Flex Structured MIMO Antenna Architecture with Enhanced Isolation for 2.48 GHz Wireless Sensor Networks
| Authors | Anusha Rani Medarametla1 , K. Vasu Babu2 , Sudipta Das3 , Praveen Mallik1 , Francis Mulagani1 |
| Affiliations |
1School of Electronics and Electrical Engineering, Lovely Professional University, Phagwara, Punjab, India 2Department of ECE, BVRIT HYDERABAD College of Engineering for Women, Telangana, India 3Department of ECE, IMPS College of Engineering and Technology, West Bengal, India |
| Е-mail | vasubabuece@gmail.com |
| Issue | Volume 18, Year 2026, Number 4 |
| Dates | Received 20 March 2026; revised manuscript received 17 August 2026; published online 21 August 2026 |
| Citation | Anusha Rani Medarametla, K. Vasu Babu, et al., J. Nano- Electron. Phys. 18 No 4, 04027 (2026) |
| DOI | https://doi.org/10.21272/jnep.18(4).04027 |
| PACS Number(s) | 84.40.Ba |
| Keywords | MIMO (30) , Mutual coupling, Channel capacity loss, Wireless sensor networks, Return loss. |
| Annotation |
This work presents a compact snow-flex structured MIMO radiator for wireless sensor network applications. The designed structure is simulated on an FR-4 dielectric substrate material with an overall size of 80 mm 45 mm, making it suitable for compact wireless devices. It operates at a resonant frequency of 2.48 GHz covering 2.46 to 2.51 GHz, which supports the ISM band for WSN communication. The simulated S11 of − 32.90 dB confirms excellent impedance matching. The isolation among MIMO system is − 26.64 dB (S21), demonstrating effective suppression of mutual coupling. A spacing of 3 mm is maintained between two radiator elements to further reduce electromagnetic interference by offering improved isolation. The key MIMO performance metrics as Envelope type Correlation Coefficient (ECC), Diversity related Gain (DG), Channel related Capacity Loss (CCL) and Total Active type Reflection Coefficient (TARC) are thoroughly calculated and discussed. All MIMO parameters satisfy the standard requirements for reliable wireless communication systems. The results indicate strong diversity performance, low correlation, and high channel capacity. Hence, designed MIMO radiator is a promising candidate for compact and efficient WSN and ISM band wireless applications. |
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List of References |
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