Building upon previous studies, this work delves into the use of ultrahigh-frequency (UHF) radio frequency identification (RFID) antennas as hydration sensors on various fabrics and frequency bands.

Barrett 2019 Auto Tunning HF Antenna is shown here installed on a 4x4 vehicle. It provides a frequency coverage of 2MHz to 30MHz with rapid tuning (typically 1.5s). The Barrett 4017 Automatic tuning ...