Compact stop band filter based on double tuned rectangular split ring defected microstrip structure for ISM band applications

Choudhury, Somdotta Roy; Parui, Susanta Kumar; Mondal, T.B.; Das, Santanu

doi:10.1109/codec.2012.6509283

Cited by 2 publications

(7 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The inductance per unit length of the single conductors L 1 and L 2 and with the inductance per unit length matrix of the coupled section L are shown in Table 2. Finally, the calculated BWR in terms of the magnetic stored energy, (12), is also shown in Table 3. These results are compared with the BWR based in the susceptance parameter to validate the proposed method.…”

Section: Experimental Results Resonators With Different Bandwidth Ramentioning

confidence: 99%

“…Calculation of the magnetic energy stored of each conductor (W m (ω 01 ), W m (ω 02 )) with (13)- (16). Calculation of BWR in terms of the magnetic energy stored of the half-resonator model with the last term of (12). Comparison between the centre frequencies (ω 01 , ω 02 ) calculated in step (i) and the resonance frequencies (ω 01 , ω 02 ) obtained in step (vii).…”

Section: Design Processmentioning

confidence: 99%

“…10. White dots 1-4 are non-resonant nodes, black dots 5-12 are the resonant nodes and the connections (5,9), (6,10), (7,11), (8,12) represent each SRR. A coupling matrix model has been used to obtain the resonance frequencies and the couplings of the prototype as in [20].…”

Section: Srr-based Dual Band-stop Filtermentioning

confidence: 99%

“…Some SRR applications are the band-stop filters, which allow applying the resonances to obtain the rejected bands [10][11][12][13], although in general they correspond to single band responses. In [10], a band-stop filter is designed with split-ring resonators coupled to a coplanar stripline, but since they are not a microstrip structure (they have no back ground plane), only one resonance is generated and the response is single band.…”

Section: Introductionmentioning

confidence: 99%

“…Kim et al [11] show the bandstop characteristic of a complementary SRR (CSRR) on a substrate used to design a band-stop filter, but again it only uses its first, sub-wavelength resonance, that allows a compact design. Choudhury et al [12] use a modified CSRR in a deflected microstrip line to produce two harmonic resonances, with only partial control on the separation between bands, that are widely spaced. In [13], resonators are concentric microstrip split rings that are connected together.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Dual‐band band‐stop microstrip filter with controllable bands based on unequal split ring resonators

Castillo-Aranibar

Garca-Lampérez

Llorente‐Romano

et al. 2019

IET Microwaves, Antennas & Propagation

View full text Add to dashboard Cite

In this study, a dual band band‐stop filter based on split ring resonators (SRR) over a ground plane with unequal rings is proposed and characterised. The proposed SRR design method, which is demonstrated here, ensures the control of the resonance frequencies and their respective bandwidths. The lengths and coupling regions of each ring are arbitrary, making possible the control of, not only the separation between the two generated resonances, but also the bandwidth ratio between the pass‐bands, or quality factors. The full characterisation of the resonators involves the computation of the resonant frequencies and the current distributions at the resonances. These current distributions are used to obtain the electromagnetic energy stored in the resonator that, in turn, is required to estimate the quality factor of each resonance. The dual band band‐stop filter is composed by four proposed SRRs coupled to a transmission line showing that, indeed, both the centre frequencies and its bandwidth ratio can be controlled. The presented results confirm the reliability of the proposed method in the design of passive devices.

show abstract

Section: Experimental Results Resonators With Different Bandwidth Ramentioning

confidence: 99%

Section: Design Processmentioning

confidence: 99%

Section: Srr-based Dual Band-stop Filtermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Dual‐band band‐stop microstrip filter with controllable bands based on unequal split ring resonators

Castillo-Aranibar

Garca-Lampérez

Llorente‐Romano

et al. 2019

IET Microwaves, Antennas & Propagation

View full text Add to dashboard Cite

show abstract

Embedded Split Ring Resonator Tunable Notch Band Filter in Microstrip Transmission Lines

et al. 2022

View full text Add to dashboard Cite

Novel design techniques for tunable and fixed frequency notch band filters are presented and validated with experiments. A notch band filter based on an Embedded Split Ring Resonator (ESRR) in a Microstrip Transmission Line (MTL) is presented. The physical dimensions of the ESRR determine the filter resonance frequency, which, when combined with a Varactor (Varactor Loaded ESRRs or VLESRRs), provides a continuously tunable resonance frequency. Tunable notch bands centered from 1.7 GHz to 4.8 GHz are obtained with resonators having an unprecedented electric length of 0.05 λ 0 at the lowest frequency, corresponding to a physical length of 7 mm and a total occupied area of 8.5 mm 2 . Two or more ESRRs are proposed to provide a deeper single notch band, a wider notch band, and/or multi notch bands. The proposed ESRRs are used jointly with a trapezoidal antenna to form 1) a notch band at 2.5 GHz; and, 2) dual notch bands at 2.5 GHz and 3.5 GHz. In addition, ESRRs are used in a Low Pass Filter (LPF) with cutoff frequency of 1 GHz to suppress undesired harmonic at 3.46 GHz and improve band rejection. The proposed MTL loaded by ESRRs, LPF and trapezoidal antenna are fabricated, measured and the results of simulations and measurements are in good agreement.INDEX TERMS Embedded ring resonator (ESRR), harmonics suppression, low pass filters (LPFs), microstrip transmission line (MTL), tunable notch band, wide band antenna.

show abstract

Compact stop band filter based on double tuned rectangular split ring defected microstrip structure for ISM band applications

Cited by 2 publications

References 6 publications

Dual‐band band‐stop microstrip filter with controllable bands based on unequal split ring resonators

Dual‐band band‐stop microstrip filter with controllable bands based on unequal split ring resonators

Embedded Split Ring Resonator Tunable Notch Band Filter in Microstrip Transmission Lines

Contact Info

Product

Resources

About