Anti-High-Power Microwave RFID Tag Based on Highly Thermal Conductive Graphene Films

Abstract

In this paper, a radio frequency identification (RFID) tag is designed and fabricated based on highly electrical and thermal conductive graphene films. The tag operates in the ultrahigh-frequency (UHF) band, which is suitable for high-power microwave environments of at least 800 W. We designed the protection structure to avoid charge accumulation at the antenna’s critical positions. In the initial state, the read range of the anti-high-power microwave graphene film tag (AMGFT) is 10.43 m at 915 MHz. During the microwave heating experiment, the aluminum tag causes a visible electric spark phenomenon, which ablates the aluminum tag and its attachment, resulting in tag failure and serious safety issues. In contrast, the AMGFT is intact, with its entire read range curve growing and returning to its initial position as its temperature steadily decreases back to room temperature. In addition, the proposed dual-frequency tag further confirms the anti-high-power microwave performance of graphene film tags and provides a multi-scenario interactive application.

Graphene Assembled Films for Radio Frequency and Microwave Technology

“…The electrical performance of the GAF tag is evaluated on a copper plate and demonstrates a reading distance of 6.4 m at 915 MHz, indicating good resistance against interference from metals. Considering practical applications, as depicted in Figure b, GAF RFID tags are affixed to different metallic objects such as mobile phones, cookie boxes, cola cans, etc., exhibiting a reading range of 3.1 to 5.4 m. Furthermore, we successfully demonstrate that GAF RFID tags can adhere to various surfaces including plastic, glass, ceramics, and other utensils as illustrated in Figure c . To address more challenging environments, we investigated the stability of GAF RFID tags under high-power microwave and high-temperature conditions.…”

“…Considering practical applications, as depicted in Figure 5b, GAF RFID tags are affixed to different metallic objects such as mobile phones, cookie boxes, cola cans, etc., exhibiting a reading range of 3.1 to 5.4 m. Furthermore, we successfully demonstrate that GAF RFID tags can adhere to various surfaces including plastic, glass, ceramics, and other utensils as illustrated in Figure 5c. 44 To address more challenging environments, we investigated the stability of GAF RFID tags under high-power microwave and high-temperature conditions. As shown in Figure 5d, at a microwave power of 800W, aluminum tags generate electric sparks, which results in burning of the tags, posing serious safety concerns.…”

“…(d) Demonstration of the practical implementation of GAF RFID tag in microwave. (c, d) Reproduced with permission from ref . Copyright 2023 MDPI.…”

Evaluation of Contactless Identification Card Immunity against a Current Pulse in an Adjacent Conductor

“…Other examples of the use of RFID technology in adverse environments with high currents are provided in [5] (RFID sensors for energy transmission lines), [6,7] (inductive power transfer for e-bikes equipped with RFID), and [8] (underground pipe monitoring). In [9], the design of a UHF RFID transponder for application in a strong electromagnetic field is described. Finally, for information security, the possibility of the targeted destruction of monitoring).…”

“…Finally, for information security, the possibility of the targeted destruction of monitoring). In [9], the design of a UHF RFID transponder for application in a strong electromagnetic field is described. Finally, for information security, the possibility of the targeted destruction of RFID cards with sensitive information (e.g., personal certificates) by a pulse in an external inductively coupled conductor (in this case, maybe a coil) is also interesting.…”