Effect of Bandage Materials on Epidermal Antenna

oleh: Irfan Ullah, Mahmoud Wagih, Abiodun Komolafe, Steve P. Beeby

Format: Article
Diterbitkan: MDPI AG 2023-01-01

Deskripsi

This study explores the effect of different types of bandages on the performance of an epidermal antenna. Three identical dipole antennas are designed on three different types of bandages, and the measured reflection coefficients, <i>S</i><sub>11</sub>, show that the antennas resonate at the same frequency despite the different types of fabric bandages. However, the antennas resonance frequency shifts to a lower frequency when the antennas are mounted on the body. The transmission coefficient, <i>S</i><sub>21</sub>, over a 60 cm link with a standard RFID antenna is at least −30 dB, and −34 dB in free space and on the body, respectively, demonstrating that the antenna is suitable for communication and wireless RF power transfer in wearable applications.