Application-Adaptable Chipless RFID Tag: Design Methodology, Metrics, and Measurements

Area of Science:

• Electrical Engineering
• Materials Science

Background:

• Chipless RFID technology offers cost-effectiveness and simplicity but typically uses single-resonator designs, limiting versatility.
• Current chipless RFID tags are often designed for single applications, hindering broader adoption and practicality.

Purpose of the Study:

• To propose a novel, application-adaptable chipless RFID tag design methodology.
• To enhance the versatility and utility of chipless RFID technology through the use of multiple resonator types.
• To analyze and optimize a previously developed high bit density tag for specific applications.

Main Methods:

• Utilizing combinations of multiple resonator types in backscatter-based frequency-coded tag designs.
• Analyzing and optimizing an existing tag design with a bit density of 27.54 bits/cm² for two distinct applications.
• Developing a method to correlate tag response characteristics with geometric parameters and introducing new tag metrics.

Main Results:

• Demonstrated an adaptable chipless RFID tag design methodology.
• Achieved high bit density (27.54 bits/cm²) and optimized for specific applications.
• Presented a method for associating tag geometry with response and introduced new comparative metrics for sensing tags.

Conclusions:

• The proposed methodology significantly enhances the versatility and utility of chipless RFID technology.
• The adaptable design and developed metrics facilitate more effective comparison and application of sensing-based chipless RFID tags.
• Further analysis and optimization of tag designs, along with addressing measurement challenges, are crucial for advancing the field.