Next-Generation Wearable Antenna: Optimized Multi-Band Performance for Advanced Wireless Systems and Applications

The escalating demand for advanced wearable technology necessitates the seamless integration of communication systems into daily life. This paper discusses the creation and assessment of a high-performance multiband wearable antenna designed for advanced wireless systems and future wearable applications. The proposed antenna, with dimensions of 47 x 30 x 1.5 mm<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sup>, operates across an extensive frequency range of 2.35-3.57 GHz and 4.97-10.45 GHz. Through numerous design iterations, significant improvements have been made in critical performance metrics, including a peak gain of 6.5 dB, impedance bandwidths of 41.22% and 71.10%, and radiation efficiency exceeding 70%. The specific absorption rate (SAR) is maintained at a safe level of 0.45 W/ kg. Thorough testing under bending conditions and in close proximity to the human body confirmed the resilience and effectiveness of the antenna in practical situations. A comparative analysis reveals that the proposed antenna outperforms existing designs in terms of size, frequency coverage, gain, SAR, and efficiency, making it a superior option for modern wearable wireless communication devices.