3D-Printed Dual-Band Antenna Design for ISM Band Biomedical Systems
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Keywords:
Dual-Band Antenna, 3D Printing, PLA, SAR, ISM Bands, BiomedicalAbstract
This study presents the development, fabrication, and evaluation of a dual-band biomedical
antenna designed for operation at 2.45 GHz and 5.8 GHz within the ISM bands. The antenna is produced
using 3D printing technology, employing PLA material known for its biocompatibility, lightweight
characteristics, and ease of fabrication. With overall dimensions of 35×35×1.7 mm³, the rectangular patch
design is compact and ideal for biomedical applications such as wearable and implantable systems. To
enhance performance, a microstrip line with inset feeding is incorporated, ensuring efficient power transfer
and impedance match over the selected bands. Detailed analyses are conducted to assess the radiation
behaviors of the antenna, including bandwidth, gain, and efficiency. Additionally, SAR simulations
evaluate the safety of antenna for use near the human body, confirming compliance with international health
standards. The SAR analysis demonstrates that the antenna performs safely under standard usage
conditions. Experimental results align closely with simulations, validating the antenna's dual-band
functionality and effectiveness. This work emphasizes the capacity of 3D printing as a cost-efficient and
adaptable method for producing innovative biomedical devices, particularly for wireless communication in
healthcare systems.
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