Frequency Reconfigurable Flexible Printed Antenna Based on Non-Volatile RF Switches for Wearable Applications

This paper presents an innovative frequency-reconfigurable, flexible printed inverted F-shaped monopole antenna, explicitly engineered for wearable applications, and designed to operate across multiple bands without necessitating complex structures or exhaustive optimizations. Constructed on a pliable Kapton substrate and utilizing non-volatile RF switches, the antenna can function assertively across four distinct operating modes, rendering dynamic frequency responses in the L-band, S-band, and C-band. This versatile approach is apt for a range of applications, from weather radar systems to global navigation satellite systems, whilst potentially integrating with wearable technologies. Notably, the employment of non-volatile switches obviates the need for static power during mode switches, markedly minimizing DC power consumption.