Compact wideband band-stop filter using stepped complementary split ring resonators

Munirathinam, Sathish; Balachandran, Amruth

doi:10.1007/s10470-019-01580-1

Cited by 13 publications

(5 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The equivalent circuit model of CSRRs can be calculated for a loaded structure with transmission lines and the relevant values of inductors and capacitors using the method presented in [44]. It is shown in [45] that CSRR structures for a stopband filter can effectively reduce the filter dimensions while maintaining high attenuation in the stop band. In [46] different design advantages such as the possibility of embedding passive and active parts for alternating integration of complementary slotted ring resonators on coplanar waveguides compared to microstrip technology are reported.…”

Section: Resultsmentioning

confidence: 99%

Super ultra-wideband closed waveguide supporting one-way states

Ahmadi¹,

Zafari²,

Pasdari-Kia³

et al. 2023

Preprint

View full text Add to dashboard Cite

<p>In this work, we propose a pseudospin-polarized closed waveguide whose walls are formed by dual electromagnetic boundary conditions. The structure has a very wide bandwidth so that it covers an extremely wide electromagnetic spectrum. The proposed waveguide supports one-way pseudospin states resulting from the establishment of dual relationships at the waveguide boundaries, and hence the establishment of mirror reflection symmetry. This provides the proposed waveguide with the ability to suppress backscattering. The boundary conditions of the proposed structure consist of complementary metasurfaces which have dual surface impedances. The presence of these boundary conditions leads to forming a pseudospin-polarized waveguide having the ability to suppress and filter the backward modes that may be excited along bent paths or discontinuities. To the best of our knowledge, this is the widest bandwidth waveguide that has been proposed so far, so that the isolation of the waveguide in the frequency range of 7- 350 GHz is above -0.5 dB. In addition, we use a very precise method based on the variational method to calculate the surface impedance of the metasurfaces forming the waveguide boundaries so as to increase the accuracy of the obtained results.</p>

show abstract

Section: Resultsmentioning

confidence: 99%

Super ultra-wideband closed waveguide supporting one-way states

Ahmadi¹,

Zafari²,

Pasdari-Kia³

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…Actually, the SRR structure has been widely used in micro- and nano-optics fields. It has not only been used as an efficient absorber [ 21 , 22 ], which can accurately control the absorption process of light [ 23 ], but also has played an important role as a filter [ 24 , 25 , 26 ] to effectively screen out light waves at specific frequencies. Lahiri et al investigated an asymmetric SRR and obtained a 0.51 µm and 0.12 µm spectral shift for a 100 nm and 30 nm thick PMMA layer [ 27 ], respectively.…”

Section: Introductionmentioning

confidence: 99%

The Strong Coupling Effect between Metallic Split-Ring Resonators and Molecular Vibrations in Polymethyl Methacrylate

Liu,

Maqbool,

Han

2024

Sensors

View full text Add to dashboard Cite

We propose and study a nanoscale strong coupling effect between metamaterials and polymer molecular vibrations using metallic split-ring resonators (SRRs). Specifically, we first provided a numerical investigation of the SRR design, which was followed by an experimental demonstration of strong coupling between mid-infrared magnetic dipole resonance supported by the SRRs fabricated on a calcium fluoride substrate and polymethyl methacrylate molecular vibrations at 1730 cm−1. Characterized by the anti-crossing feature and spectral splitting behaviors in the transmission spectra, these results demonstrate efficient nanoscale manipulation of light–matter interactions between phonon vibrations and metamaterials.

show abstract

“…However, the circuit size remains an issue. Additionally, a complementary split-ring resonator is used to design a wideband bandpass filter 6 . The proposed filter is compact in size.…”

Section: Introductionmentioning

confidence: 99%

Design of a highly selective bandstop filter using dual path capacitive coupled SIR structure

Younis

Rehman

Khalid

2022

Preprint

View full text Add to dashboard Cite

This article presents the design of a wideband bandstop filter (BSF) with the ultimate goal of improving selectivity. The designedfilter is consists of a dual-path Capacitive Coupled Step Impedance Resonator (DP-CCSIR). A theoretical analysis of theproposed DP-CCSIR structure has been presented in this paper. It has been observed that the selectivity can be improved byincreasing the order of the dual coupled step impedance resonator. The proposed design produces a wideband BSF centeredat 5.25 GHz with fractional bandwidth of 58.5%. The results have demonstrated that the resonant frequencies are regulatedby varying the electrical length of CCSIR. Moreover, it has also been realized that dual-path CCSIR is involved in producingthe finite frequency transmission poles, hence leading to better selectivity. However, the proposed design has been validatedthrough the fabrication of three prototypes. The measurement shows good concurrence with the simulated results.

show abstract

Compact wideband band-stop filter using stepped complementary split ring resonators

Cited by 13 publications

References 13 publications

Super ultra-wideband closed waveguide supporting one-way states

Super ultra-wideband closed waveguide supporting one-way states

The Strong Coupling Effect between Metallic Split-Ring Resonators and Molecular Vibrations in Polymethyl Methacrylate

Design of a highly selective bandstop filter using dual path capacitive coupled SIR structure

Contact Info

Product

Resources

About