Propagation characteristics of complementary split-ring resonators excited by internal cylindrical wave

TL;DR

This paper investigates the electromagnetic propagation characteristics of complementary split-ring resonators (CSRRs) under cylindrical wave excitation using FDTD simulations, revealing anisotropic transmission behaviors useful for device development.

Contribution

It provides detailed analysis of CSRR transmission properties under cylindrical wave excitation, highlighting anisotropic responses and potential applications in electronic filters.

Findings

Single slot ring CSRR shows resonance-dependent transmission dips and enhancements.

Double slot ring CSRR exhibits more pronounced anisotropic transmission.

Results aid in designing advanced electromagnetic devices.

Abstract

For a complementary split-ring resonators (CSRRs) etched on one screen of two infinite and perfectly conducting plates under cylindrical plane wave illumination, the transmission coefficients analysis were performed through finite-difference time-domain simulations. For the single slot ring CSRR, two transmission dips are observed for the direction parallel to aperture at resonance whereas two enhanced transmission for the direction normal to the aperture. For double slot ring CSRR, the transmission coefficients appear more anisotropic. The results provided considerable insight into the electromagnetic response of CSRR and would be very helpful for developing new electronic devices such as filters.