Avery Dennison has been granted a patent for an RFID device featuring a reactive strap with an RFID chip and conductive ring. The device includes an antenna and a tuning block set, which influences the resonant frequency based on its shape and position relative to the reactive strap. GlobalData’s report on Avery Dennison gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Avery Dennison, Pressure Sensitive Adhesive Tape was a key innovation area identified from patents. Avery Dennison's grant share as of June 2024 was 60%. Grant share is based on the ratio of number of grants to total number of patents.
Rfid device with adjustable resonant frequency using tuning block
The patent US12039388B2 describes an innovative RFID device that integrates a reactive strap, an RFID chip, a conductive ring, and a tuning block set. The device's resonant frequency is influenced by the shape and positioning of the tuning block relative to the reactive strap. Notably, the design allows for a linear relationship between the tuning block's position and the resonant frequency change, which can be achieved through various configurations of the tuning block set. The tuning blocks can be made from metallic, inorganic, or ceramic materials and can vary in size and shape, allowing for flexibility in tuning. The device may also include a substrate that supports the reactive strap, antenna, and tuning block set, with the antenna potentially configured as a monopole.
Additionally, the patent outlines methods for forming a tuned RFID device by strategically placing the tuning block set in relation to the reactive strap to establish the desired resonant frequency. This process can involve overlapping the tuning block with the conductive ring or ensuring that no overlap occurs. The claims emphasize the versatility of the tuning block set, which can be adjusted in multiple axes and can feature both uniform and non-uniform dimensions. Overall, the patent presents a comprehensive approach to enhancing RFID device performance through precise tuning mechanisms.
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