Compact Omnidirectional UWB Trapezoidal-Slot Antenna Design for IoT Applications
| Authors | G.Challa Ram1, Y.Mallikharjuna Reddy2, Naveen Kumar Pola3, Purna Chandra Reddy4, G. Krishna Kishore4, M. Venkateswara Rao5 |
| Affiliations | 11Department of Electronics and Communication Engineering, Shri Vishnu Engineering College for Women, Bhimavaram, Andhra Pradesh, India2Department of Electronics and Communication Engineering, Tirumala Engineering College, Narasaraopet, Andhra Pradesh, India3Department of Electronics and Communication Engineering, CVR College of Engineering, Hyderabad, Telangana, India4Department of Electronics and Communication Engineering, G. Narayanamma Institute of Technology and Science (For Women), Hyderabad, Telangana, India5Department of Physics, Indian Institute of Technology Madras, Tamil Nadu, India1Department of Electronics and Communication Engineering, Shri Vishnu Engineering College for Women, Bhimavaram, Andhra Pradesh, India2Department of Electronics and Communication Engineering, Tirumala Engineering College, Narasaraopet, Andhra Pradesh, India3Department of Electronics and Communication Engineering, CVR College of Engineering, Hyderabad, Telangana, India4Department of Electronics and Communication Engineering, G. Narayanamma Institute of Technology and Science (For Women), Hyderabad, Telangana, India5Department of Physics, Indian Institute of Technology Madras, Tamil Nadu, India |
| Е-mail | venkat.edison@gmail.com |
| Issue | Volume 17, Year 2025, Number 6 |
| Dates | Received August 2025; revised manuscript received December 2025; published online 19 December 2025 |
| Citation | G.Challa Ram, Y.Mallikharjuna Reddy, Naveen Kumar Pola, и др., J. Nano- Electron. Phys. 17 No 6, 06015 (2025) |
| DOI | https://doi.org/10.21272/jnep.17(6).06015 |
| PACS Number(s) | 84.40.Ba |
| Keywords | Ultra-wideband antenna, Trapezoidal monopole, Smart industrial applications, Omnidirectional radiation. |
| Annotation | This paper presents the design and performance analysis of a compact ultra-wideband (UWB) antenna optimized for smart industrial applications. The proposed antenna achieves broad impedance bandwidth from 2 GHz to 10 GHz with omnidirectional radiation characteristics, making it suitable for diverse industrial environments requiring robust and seamless connectivity. Fabricated on a compact 30 mm 25 mm FR4 epoxy, the antenna incorporates an L-shaped slot in the ground plane to enhance impedance matching and bandwidth without increasing its physical size. Experimental results demonstrate strong agreement with simulated data, showing |S11| values below 10 dB across the UWB range and stable gain levels from 2 dBi to 4 dBi. Three-dimensional radiation pattern measurements were conducted to assess the antenna’s performance comprehensively, confirming consistent omnidirectional coverage across key frequencies and ensuring reliable device communication in varied orientations. The proposed UWB antenna’s compact size, omnidirectional radiation, and broad bandwidth make it a promising solution for smart industrial systems, where spatial constraints and high-performance wireless connectivity are paramount. |
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List of References English version of article |
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