In today's fast-paced world where hospitals are often overwhelmed with patients, the need for remote and wireless health solutions has become more critical than ever. With the increasing burden on healthcare facilities the ability to monitor and diagnose patients remotely can significantly improve medical efficiency and patient outcomes. Also, non-invasive health solutions offer a major advantage by allowing continuous health monitoring without the need for intrusive procedures thereby reducing patient discomfort while enabling timely medical interventions. For such wireless and remote health systems to function effectively robust wireless communication links are required along with specialized medical devices that are capable of transmitting accurate health data in real time. The seamless operation of these devices heavily depends on the performance of highly efficient antennas which play a crucial role in ensuring uninterrupted wireless connectivity. Without well-designed antennas wireless medical devices may suffer from signal loss, reduced range and poor reliability which can result in limiting their effectiveness in critical healthcare applications. The increasing demand for advanced digital health solutions has underscored the critical role of efficient and miniaturized antennas in wireless health monitoring and diagnostics. This research focuses on the development and optimization of compact antennas tailored for integration into modern healthcare applications and operating in various medical bands particularly Industrial, Scientific and Medical (ISM) bands and millimeter-wave frequency bands (30 GHz – 300 GHz). The study aimed to address fundamental challenges associated with antenna performance in body-worn and implantable medical devices particularly the degradation of gain and efficiency due to interactions with biological tissues. The research is conducted in three distinct phases. The first phase involved a comprehensive literature review of existing on-body and implantable antenna designs for identifying their limitations in terms of miniaturization, efficiency and operational stability. The second phase focused on the design, simulation and optimization of new antenna structures that improve gain and efficiency through advanced methodologies such as metamaterial loading, multilayer configurations and advanced miniaturization techniques. The final phase involved the fabrication and experimental validation of the proposed designs to assess their real-world performance and ensure compliance with biomedical communication standards. A significant contribution of this research is the development of high-performance antennas capable of enabling continuous health monitoring, remote medical diagnostics and wireless data transmission with body tissues in close proximity. By leveraging miniaturized antenna arrays and advanced electromagnetic design principles, this study aimed to enhance the effectiveness of wireless medical systems. The proposed antenna designs exhibited superior radiation and resonance characteristics compared to most existing works, achieving a more compact and flexible form factor, enhanced gain and efficiency, wider operational bandwidth and improved practical applicability. These findings brought profound benefits to the future of digital health particularly in facilitating remote patient monitoring thus reducing hospital dependency and improving the accessibility and responsiveness of healthcare services. Moreover, the outcomes of this study contributed to the broader objective of establishing reliable and efficient wireless communication frameworks for next-generation healthcare applications particularly for the detection and monitoring of malicious bodily activities.
| Date of Award | 17 Nov 2025 |
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| Original language | English |
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| Supervisor | Qasim Ahmed (Main Supervisor) |
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