Advancing Wearables: Dual-Band Antenna Design with High Permittivity Miniaturization using Natural Substrate

This paper presents a comprehensive study on the design of dual-band antennas using high-permittivity substrates derived from natural materials, specifically Typha angustifolia (Cellulose). The process of this natural substrate is compared with conventional FR4 and an unconventional textile substrate, jeans material. The synthesis is carried out through detailed simulations, focusing on return loss, gain, and radiation pattern. This research highlights the benefits of using natural substrates in terms of flexibility, environmental friendliness, and antenna miniaturization