What is it about?
This paper presents a novel passive UHF RFID antenna based on the uniform meander line antenna theory, contributing to the field of RFID TAG antennas. The antenna is designed on a kapton substrate with specific properties: a dielectric constant of 3.5, tangent loss of 0.0027, and a height of 508um. To design and simulate the RFID TAG antenna, an electromagnetic solver is employed. The proposed antenna is intended to cover the UHF band [865-870MHz], providing a bandwidth of 5MHz. At 868MHz, the reflection coefficient is approximately -14.96dB, and the simulated gain is 1.66dBi. The theoretical read range is estimated to be 7m. The designed antenna is validated, manufactured using the ink-jet process on kapton, and assembled using anisotropic conductive paste. Its overall dimensions are 40×50mm2, and an experimental reading test using an RFID base station confirms a read range of 6m.
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Why is it important?
The UHF band presents a notable challenge when it comes to miniaturization, but this RFID tag antenna has demonstrated remarkable success in overcoming it. Despite the losses encountered during the process of reducing the antenna design, it still manages to maintain outstanding performance.
Perspectives
Integrating this RFID tag into different RFID applications.
Latifa EL AHMAR
Read the Original
This page is a summary of: A new flexible passive UHF RFID tag antenna using meander line, January 2023, American Institute of Physics,
DOI: 10.1063/5.0136014.
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