Analysis of bow tie array RFID tag antenna for paper reel identification systems

This paper presents an analysis and measurement results of using bow tie array-type tag antenna design in paper reel identification. The advantage of the bow tie array compared to a single bow tie is better readability from the opposite direction to S. This indicates that the bow tie array can harvest energy to the microchip and backscatter the identification data to the reader more efficiently from the backside of the reel. Future work includes read range testing using industrial paper reels to confirm the omnidirectional performance. To improve the radiation patterns and to further increase the read ranges, optimization of the array feed lines and the impedance matching to the microchip will be carried out.