Multiresonant Split Ring Resonator with Meandered Strips

• Published in: Physica status solidi. A, Applications and materials science Vol. 217; no. 6
• Main Authors: Hao, Jianping, Djouadi, Amine, Rault, François, Tao, Xuyuan, Lheurette, Éric, Burgnies, Ludovic
• Format: Journal Article
• Language: English
• Published: Weinheim Wiley Subscription Services, Inc 01-03-2020; Wiley
• Subjects: Circuits; Computer simulation; Engineering Sciences; Frequency shift; Input impedance; Mapping; metamaterial antenna; metamaterials; multiresonance; Repair & maintenance; Resonance; Resonators; split-ring resonators; Standing waves; Transmission lines; wearable technologies; metamaterials; split-ring resonator; metamateials antenna; wearable technology; multi-resonance
• ISSN: 1862-6300; 1862-6319
• DOI: 10.1002/pssa.201901017

A multiresonant split ring resonator (SRR) composed of two circular‐shaped meandered strips is presented. Resonances are first analyzed by means of eigenmodes computation and field mapping. It is shown that a resonance can emerge from a standing wave taking place in each slot produced by a meandered strip. A slot operates as a two‐wire transmission line section short‐circuited at one termination and loaded by an open‐circuit at the other end. Consecutively, a resonance occurs approximately when a quarter‐wavelength matches the length of the slot. A resonance frequency shift is observed, and it is related to a transverse magnetic coupling between a first antisymmetric mode and a second symmetric mode. Finally, multiple resonances in an SRR are experimentally evidenced by spectroscopy of the input impedance of an SRR resonator antenna. Experimental results are favorably compared with simulation.
A multiresonant split ring resonator (SRR) composed of two circular‐shaped meandered strips is presented. Resonances are first analyzed by means of eigenmodes computation and field mapping. Then, multiple resonances in an SRR are experimentally evidenced by spectroscopy of the input impedance of a textile metamaterial antenna produced by embroidery. Experimental results are favorably compared with simulation.