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A novel dual-band wearable antenna designed to operate within the frequency bands of 2-4.42 GHz and 5.61-14.56 GHz is being proposed. This antenna employs a ground structure featuring symmetrical semicircular slots, which contribute to its enhanced performance. The antenna, shaped like a circle with rectangular slots, is strategically chosen to optimize the current path and improve antenna efficiency. The feeding mechanism utilizes microstrip feed technology to provide power to the radiator. With a compact size of 50mm×42mm×1.6mm and constructed using a polyamide substrate, the antenna is suitable for wearable applications. Despite its small form factor, the antenna achieves a peak gain of 7.28 dBi, making it a viable option for various communication scenarios. Extensive analysis and simulations have been conducted to evaluate the antenna's gain and radiation pattern, demonstrating its effectiveness in practical use cases. Overall, this proposed dual-band wearable antenna offers promising performance characteristics for ISM band and wireless communication systems.
Thakur et al. (Fri,) studied this question.