Electrically Small Flared Half-Loop Shaped Antenna for NB-IoT
An electrically small, cuboid shaped antenna has been designed and simulated in this paper. The design with an electrical size <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$ka$</tex> of 0.24 and a maximum size of <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$\lambda/13$</tex> achieves an overall radiation efficiency of 38%, a directivity of <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$5.83 dBi$</tex>, and a quality factor of 3.2 times the Chu limit. The design has been analyzed using spherical wave expansion (SWE) and has been compared with the excited modes of well-known reference antenna designs.
Authors
- Christophe Delaveaud (ORCID: https://orcid.org/0000-0002-8187-3457)
- Marwan Jadid (ORCID: https://orcid.org/0000-0002-2883-976X)
- Luca Persano (ORCID: https://orcid.org/0000-0002-0050-3666)
- T.P. Vuong (ORCID: https://orcid.org/0009-0009-9224-462X)
Institutions
- Institut polytechnique de Grenoble (FR)
- Commissariat à l'Énergie Atomique et aux Énergies Alternatives (FR)
- CEA Grenoble (FR)
- Laboratoire d'Électronique des Technologies de l'Information (FR)
- Université Grenoble Alpes (FR)
Publication Details
- Published
- 2025-03-30
- DOI
- https://doi.org/10.23919/eucap63536.2025.10999207
- Primary Topic
- Antenna Design and Analysis
- Type
- article
- Field-Weighted Citation Impact
- 0.00