Miniaturized and Low SAR Printed Antenna for Healthcare Monitoring
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Abstract
A miniaturized medical antenna with dual-band operation in the Industrial, Scientific, and Medical (ISM) bands is presented with a low specific absorption rate (SAR) for recommended safety limits. The proposed antenna with dimensions (27.6 mm × 28.2 mm × 0.32 mm) is considered suitable for medical applications. A fractal copper patch, Rogers 3010 biocompatible material, and full ground plane copper are used to get a miniature Antenna design. The research aims to design a compact, biocompatible, and low-SAR medical antenna for implantable and wearable applications. The dual-band antenna uses a fractal copper patch, simulating performance using CST Studio Suite, and optimizing SAR and gain for safety. Different configurations are analyzed for efficiency and medical applications. Low SAR levels were achieved for implantable and wearable designs equal to (0.487, and 0.141 W/kg) and (0.488, and 0.0392 W/kg) for dual bands 0.9 and 2.4 GHz respectively, and Negative gain for safety considerations. The design has been developed into three different forms: implantable, wearable, and capsule design for higher efficiency and more medical applications. The CST studio suite's simulations assessed the antenna's performance using design standards rules and efforts.
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