Circularly polarized dual-band resonance in a miniaturized implantable antenna using combined hexagonal and rhombic patches
Abstract The design and characterisation of a novel dual-band implantable antenna with compact size is presented in this research. The antenna, which is $$5 \times 5 \times 0.635 {\text{mm}}^{3}$$ in size and operates at two critical frequencies—0.954 GHz in the UHF band and 2.4 GHz in the ISM band—...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-025-86882-3 |
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| author | Shanmugam Kumaravel Madurakavi Karthikeyan |
| author_facet | Shanmugam Kumaravel Madurakavi Karthikeyan |
| author_sort | Shanmugam Kumaravel |
| collection | DOAJ |
| description | Abstract The design and characterisation of a novel dual-band implantable antenna with compact size is presented in this research. The antenna, which is $$5 \times 5 \times 0.635 {\text{mm}}^{3}$$ in size and operates at two critical frequencies—0.954 GHz in the UHF band and 2.4 GHz in the ISM band—was fabricated on an RT6010 substrate. The U-shaped slot and shorting pin on the radiating element have been exploited to achieved dual-band and circular polarization. The antenna is noteworthy for achieving circular polarization with a broad axial ratio bandwidth of 24.6%, which enables strong performance throughout its operating frequencies. The proposed antennas SAR values satisfy IEEE safety standards for implantable medical devices with a gain of − 28.1 dB at 2.4 GHz and − 31.2 dB at 0.954 GHz, despite its small size. The design represents a significant advancement in the field of medical implant technology since it prioritizes effective wireless communication capabilities while upholding strict safety regulations. |
| format | Article |
| id | doaj-art-bedbdccae4f5438399d27f088b6068e2 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-bedbdccae4f5438399d27f088b6068e22025-02-02T12:16:13ZengNature PortfolioScientific Reports2045-23222025-01-0115111210.1038/s41598-025-86882-3Circularly polarized dual-band resonance in a miniaturized implantable antenna using combined hexagonal and rhombic patchesShanmugam Kumaravel0Madurakavi Karthikeyan1Department of Communication Engineering, School of Electronics Engineering, Vellore Institute of TechnologyDepartment of Communication Engineering, School of Electronics Engineering, Vellore Institute of TechnologyAbstract The design and characterisation of a novel dual-band implantable antenna with compact size is presented in this research. The antenna, which is $$5 \times 5 \times 0.635 {\text{mm}}^{3}$$ in size and operates at two critical frequencies—0.954 GHz in the UHF band and 2.4 GHz in the ISM band—was fabricated on an RT6010 substrate. The U-shaped slot and shorting pin on the radiating element have been exploited to achieved dual-band and circular polarization. The antenna is noteworthy for achieving circular polarization with a broad axial ratio bandwidth of 24.6%, which enables strong performance throughout its operating frequencies. The proposed antennas SAR values satisfy IEEE safety standards for implantable medical devices with a gain of − 28.1 dB at 2.4 GHz and − 31.2 dB at 0.954 GHz, despite its small size. The design represents a significant advancement in the field of medical implant technology since it prioritizes effective wireless communication capabilities while upholding strict safety regulations.https://doi.org/10.1038/s41598-025-86882-3Implantable antennaCircular polarizationDual-band antennaBiomedical antennaSARCompact antenna |
| spellingShingle | Shanmugam Kumaravel Madurakavi Karthikeyan Circularly polarized dual-band resonance in a miniaturized implantable antenna using combined hexagonal and rhombic patches Scientific Reports Implantable antenna Circular polarization Dual-band antenna Biomedical antenna SAR Compact antenna |
| title | Circularly polarized dual-band resonance in a miniaturized implantable antenna using combined hexagonal and rhombic patches |
| title_full | Circularly polarized dual-band resonance in a miniaturized implantable antenna using combined hexagonal and rhombic patches |
| title_fullStr | Circularly polarized dual-band resonance in a miniaturized implantable antenna using combined hexagonal and rhombic patches |
| title_full_unstemmed | Circularly polarized dual-band resonance in a miniaturized implantable antenna using combined hexagonal and rhombic patches |
| title_short | Circularly polarized dual-band resonance in a miniaturized implantable antenna using combined hexagonal and rhombic patches |
| title_sort | circularly polarized dual band resonance in a miniaturized implantable antenna using combined hexagonal and rhombic patches |
| topic | Implantable antenna Circular polarization Dual-band antenna Biomedical antenna SAR Compact antenna |
| url | https://doi.org/10.1038/s41598-025-86882-3 |
| work_keys_str_mv | AT shanmugamkumaravel circularlypolarizeddualbandresonanceinaminiaturizedimplantableantennausingcombinedhexagonalandrhombicpatches AT madurakavikarthikeyan circularlypolarizeddualbandresonanceinaminiaturizedimplantableantennausingcombinedhexagonalandrhombicpatches |