Trade-Off Analysis for Array Configurations of Chipless RFID Sensor Tag Designs

Area of Science:

• Electrical Engineering
• Electromagnetics
• Wireless Communication

Background:

• Chipless radio frequency identification (RFID) tags face challenges in accurate detection and reliable performance.
• Low radar cross section (RCS) and mutual coupling effects limit the quality (Q) factor and detectability of these tags.
• Optimizing chipless RFID systems for practical use is complicated by these inherent limitations.

Purpose of the Study:

• To investigate the performance characteristics and trade-offs among RCS, Q-factor, and detectability in Pi-shaped array configurations of chipless RFID tags.
• To analyze various array configurations and evaluate their impact on system performance using link budget analysis.
• To provide insights into optimizing chipless RFID tag array design for specific application requirements.

Main Methods:

• Simulation of Pi-shaped array configurations for chipless RFID tags.
• Comprehensive analysis of different array structures.
• Link budget evaluation to assess system performance impacts.
• Comparison of planar and linear array configurations.

Main Results:

• Planar arrays demonstrate superior performance in both RCS and Q-factor compared to linear arrays.
• Essential trade-offs exist between tag identification range and angular coverage, influenced by array size and electromagnetic coupling.
• Simulation results elucidate the impact of different array structures on overall system performance.

Conclusions:

• Optimizing resonance quality and scattering efficiency is crucial for tailoring chipless RFID systems.
• The study offers valuable insights for the design and operation of chipless RFID arrays.
• Findings contribute to the advancement of chipless RFID technology for practical applications.