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FM TABS: Frequency Modifying RFID Tag Antenna Based Sensing

Technology Benefits: -Standardized communication protocols-Low cost tags-Adoption by major US retail companies as a track and trace solution

Technology Application: Cold supply chain operations

Detailed Technology Description: None

Industry: Agriculture

Sub Category: Animal

*Abstract: Problem:Almost a third of perishables become damaged or destroyed during cold supply chain operations. This can be reduced by using better temperature sensors to monitor ambient temperature conditions.Technology:This invention describes a sensor design that uses a shape memory polymer and a metal plate to convert temperature violations into a change of tag antenna properties. This single-use device is secure for audit trails as it cannot be reset once the temperature threshold is violated. The invention also describes a design and design methodology for an UHF RFID tag antenna that shifts its optimum operating frequency between 902 and 928 MHz band when a temperature threshold is exceeded.

Country/Region: USA

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