Low bandwidth chipless RFID tag using complementary split ring resonator

Abstract

A small structure for chipless RFID tag is proposed; it is inspired by a C-shaped structure and based on HCSRR. This structure has curved strips, which are obtained by fine cutting the substrate from the symmetry of the C-shaped structure as base structure, and then missing part of the path is compensated by creating the PMC boundary condition in the cut-off point according to the image theory. Hence, the resonant frequencies of the proposed structure remain the same as those of the base structure. The substrate is Rog4003 with ϵ_r=3.55 and dimensions of 30×15×0.8 mm³, the ratio of area to lambda for the first resonant in 2.4 GHz is 0.073, and the average distance between two resonances is 300 MHz Half the structure without adding any other element reduces the production cost by 50%. Moreover, the structure can be printed on flexible substrates due to its simple design and non-complexity.

KEYWORDS:

• Radio frequency identification (RFID)
• CSRR
• chipless
• image theory
• PMC

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Notes on contributors

Sajjad Tijeri-Mofrad

Sajjad Tijeri-Mofrad received the B.Sc. degree in telecommunications engineering from the University of Qom, Qom, Islamic Republic of Iran, in 2019, and currently working toward the M.Sc. degree in telecommunication engineering at Tarbiat Modares University, Tehran, Islamic Republic of Iran. His research interest includes Chipless RFID tag design, terahertz antenna design, Visible Light Communication antenna, MIMO VLC.

Sajad Mohammad-Ali-nezhad

Sajad Mohammad-Ali-Nezhad received the B.Sc. degree in electronic engineering from Shahid Chamran University, Ahwaz, Iran, in , and the M.Sc. and Ph.D. degrees in communication engineering from Shahed University, Tehran, Iran, in 2010 and 2015, respectively. Currently, he is Associate Professor and the Vice President for Administrative and Financial Affairs, University of Qom, Qom, Iran. His research interests include leaky wave antennas, printed circuit antennas, array antennas, phased array antennas, MIMO antennas, RFID tag antennas, frequency selective surface, electromagnetic compatibility, microwave filters, and electromagnetic theory.

Amir Hossein Zarif

Amir Hossein Zarif received the B.Sc. degree in telecommunications engineering from the University of Qom, Qom, Islamic Republic of Iran, in 2019, and is currently working toward the M.Sc. degree in telecommunications engineering at Tarbiat Modares University, Tehran, Islamic Republic of Iran. His research interest includes Chipless RFID tag design, Radio Communication and Cellular Communication.