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This contribution is focused on the performance evaluation of a long-range patch-type antenna for ultra-high frequency (UHF) radiofrequency identification (RFID) wristband tags. The antenna design was presented in the IEEE International Conference on RFID Technology and Applications (RFID-TA), held on September 4-6, 2023, Aveiro, Portugal, under the title &#x201C;A durable and flexible, low-cost tag antenna design for UHF RFID wearable applications&#x201D;. First, the theoretical and practical evaluation of the wristband tag antenna is conducted in four different scenarios. Next, the studied solution is benchmarked against a selection of the current commercial solutions. The proposed antenna design is mounted on a flexible and low-cost Teflon (PTFE) substrate, and it consists of a disconnected metal-substrate-metal layered structure. To produce a light and comfortable wearable device, the wristband design constraints limit the thickness to 1 mm and the width to 3 cm. The design is intended to be used in human identification and tracking applications while providing enough durability to endure for a prolonged period without significant antenna de-tuning. The proposed wristband is designed to operate in the FCC band (902-928 MHz) and it can reach distances over 3-5 meters, depending on the microchip sensitivity. The results of the experiments show that the performance of the proposed wristband design is comparable to current commercial solutions, while offering a different set of features. A discussion on the comparison between the current solutions and the proposed wristband antenna is provided in the text.

UHF RFID Wristbands: A Long-Range, Durable, Flexible, and Low-Cost Tag Antenna Design