Abstract
Radio frequency (RF) biosensor research is advancing in the medical point-of-care diagnostics field with the increased demand for smart adaptive contactless RF biosensors for a holistic tailored healthcare provisioning including cancer detection. This paper introduces an elliptically-slotted patch antenna (ESPA) designed to perform optimally in biosensing applications. The verified performance shows resonance frequency difference of the ESPA is 2.5% compared with the primary slot-less patch antenna of 6.6%. Hence, the proposed model compares with the conventional slot-less patch antenna, demonstrating a significant improvement in its bandwidth efficiency by over 62%. The fabricated ESPA yields a total gain of 6.75 dBi at 2.74 GHz. This novel biosensing antenna is suitable for bio-sample detection and signal transmission applications. Moreover, the reported novel ESPA will support multipurpose sub-6 GHz 5G/Wi-Fi 6/6E (2.4 GHz, 5 GHz, and 6 GHz) point-of-care diagnostics wireless data transmission and connectivity for medical applications. This system’s miniaturised size enhances a compact, portable label-free, reliable, real-time detection with a cost-effective fabrication. The highly sensitive ESPA satisfies the minimum size, weight and power-to-cost (SWaP-C) requirements.
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