Coupling Effect of Split Ring Resonator and Its Mirror Image

Zhang, Fuli; Zhao, Qian; Sun, Jingbo; Zhou, Ji; Lippens, D.

doi:10.2528/pier11121808

Cited by 24 publications

(16 citation statements)

References 61 publications

(87 reference statements)

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“…Since the beginning of the proposal of MMs, SRR has played an important role in achieving negative permeability, negative refractive index, coupling effect and other exotic phenomena [30][31][32][33][34][35][36][37][38][39]. The two mutually twisted SRRs also can be formed a magnetic dimer possessing optical activity [39].…”

Section: Physical Model Simulation and Experimentsmentioning

confidence: 99%

Giant Circular Dichroism and Negative Refractive Index of Chiral Metamaterial Based on Split-Ring Resonators

Cheng¹,

Nie²,

Wu³

et al. 2013

PIER

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Abstract-In this paper, a double-layer split-ring resonator structure chiral metamaterial was proposed which could exhibit pronounced circular dichroism (CD) effect and negative refractive index at microwave frequencies. Experiment and simulation calculations are in good agreement. The retrieved effective electromagnetic parameters indicate that the lower frequency CD effect is associated with the negative refractive index property of the left circularly polarized (LCP) wave, and the upper one is to the right circularly polarized (RCP) wave. The mechanism of the giant CD effect could be further illustrated by simulated surface current and power loss density distributions.

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Section: Physical Model Simulation and Experimentsmentioning

confidence: 99%

Giant Circular Dichroism and Negative Refractive Index of Chiral Metamaterial Based on Split-Ring Resonators

Cheng¹,

Nie²,

Wu³

et al. 2013

PIER

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“…This interpretation, based on coupled mode theory, explains why the frequency decreases when the gap of the split-ring gets close to the waveguide wall. Zhang et al attributed this to the increase in gap capacitance [14].…”

Section: Theorymentioning

confidence: 99%

“…The effect of the walls of a waveguide on a split-ring resonator was numerically and experimentally investigated using the coupling between the resonator and its mirror images. It was noted that a split-ring resonator trapped inside a waveguide couples with an infinite array of images [14].…”

mentioning

confidence: 99%

Coupled Mode Theory Applied to Resonators in the Presence of Conductors

Elnaggar

Tervo

Mattar

2015

IEEE Trans. Microwave Theory Techn.

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Using the method of images, Energy Coupled Mode Theory (ECMT), a coupled mode equation in the frequency domain, is extended to deal with important cases where resonators are in close proximity to conducting surfaces. Depending on the type of conductors and the orientation of the resonators, the method of images determines the relative phases of the images. Using the formed images, the coupled frequencies and fields can be determined by applying ECMT. Two cases are studied. In the first case, it is shown that a dielectric resonator inserted in a cavity couples with both the mirror image and the cavity. The frequency behavior is described by the interaction with the image which counteracts that with the cavity. The second case is that of resonators sandwiched between conducting plates. It is shown that an infinite array of stacked images is formed. The coupling of the resonator with its images determines the coupled frequencies and fields. In this context, the main advantage of ECMT is its ability to separate the effects of the walls from the uncoupled system. This means that the system parameters are independent of the separation distances and/or the type of conductors, which renders the post processing analyses easier and predictable. Provided that the behaviors of the uncoupled resonators are known, ECMT is general and can be applied to more complex systems.

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“…The CSRRs affect the inductance and capacitance of the transmission line. The effective negative permittivity of the CSRRs contributes to the upper stop band characteristics [8][9].…”

Section: Filter Structurementioning

confidence: 99%