Dual passband filter based on semicircular cavity substrate integrated waveguide using complementary split ring resonators

Chaudhury, Soumit Samadder; Awasthi, Seema; Singh, Rajat Kumar

doi:10.1109/aemc.2017.8325693

Cited by 2 publications

(5 citation statements)

References 4 publications

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“…A dual-band SIW bandpass filter with single loop CSRRs arrays on the upper layer has been proposed to achieve control over the bandwidth by changing the dimensions of CSRRs and the spacing between CSRRs arrays [9]. Semicircular CSRRs loaded onto the SIW cavity to provide independent control over the passband resonant frequency by varying the ring dimensions have been proposed and investigated [10]. A half-mode substrate integrated waveguide (HSIW) cavity that comprises modified split ring resonators (MSRRs) etched on the top layer of the waveguide has been proposed and investigated [11].…”

Section: Introductionmentioning

confidence: 99%

Hexagon Shape Siw Bandpass Filter With CSRRS Using Artificial Neural Networks Optimization

Rayala¹,

Raghavan²

2022

PIER Letters

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A dual-band hexagon shape substrate integrated waveguide (SIW) based band-pass filter with single loop complementary spilt ring resonators (CSRRs) is introduced in this paper. The design parameters of this filter are optimized by using artificial neural networks (ANNs). Especially an error back propagation multilayer perceptron (EBP-MLP) neural network with Levenberg-Marquart (LM) algorithm is used. A physical prototype of the proposed model is fabricated and tested. In the lower passband from 10.2 to 10.6 GHz, the insertion loss is about −0.8 dB with a fractional bandwidth of 3.85%, and in the upper passband from 12.11 to 13.31 GHz, the insertion loss is about −0.8 dB with a fractional bandwidth of 9.56%. It is observed that the insertion loss is the same in both the passbands. The obtained experimental results are in good agreement with the estimated results using full-wave analysis and ANN optimization.

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Section: Introductionmentioning

confidence: 99%

Hexagon Shape Siw Bandpass Filter With CSRRS Using Artificial Neural Networks Optimization

Rayala¹,

Raghavan²

2022

PIER Letters

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“…The SIW technology delivers a suitable engineering and research platform to design and develop high performance microwave filters of single as well as multiple passbands . SIW resonators are significantly utilized to realize different microwave bandpass filters, either by manipulating the waveguide cavity or by introducing external circuitry, such as split ring resonators (SRRs) to the cavity . Various single and multiple bandpass filters are proposed based on SIW cavity.…”

Section: Introductionmentioning

confidence: 99%

“…Thus the idea of developing compact bandpass filters using either SRRs or CRLH resonating structures are quite convincing. One has to compromise with the selectivity of passband and out‐of‐band rejection level of a filter response when CSRRs are introduced into the SIW cavity, where as a mushroom structure with a metallic patch and via, being a composite right/left handed resonating structure is advantageous for designing compact bandpass filters with improved selectivity and out‐of‐band response …”

Section: Introductionmentioning

confidence: 99%

“…2,3 SIW resonators are significantly utilized to realize different microwave bandpass filters, either by manipulating the waveguide cavity or by introducing external circuitry, such as split ring resonators (SRRs) to the cavity. [4][5][6][7][8] Various single and multiple bandpass filters are proposed based on SIW cavity. A combline filter based on SIW structure using coplanar waveguide (CPW) feedline generated single passband and showed significant out of band response but compromised the selectivity of the passband.…”

Section: Introductionmentioning

confidence: 99%

“…One has to compromise with the selectivity of passband and out-of-band rejection level of a filter response when CSRRs are introduced into the SIW cavity, where as a mushroom structure with a metallic patch and via, being a composite right/left handed resonating structure is advantageous for designing compact bandpass filters with improved selectivity and out-of-band response. 5,7,8,13,24 This article presents a dual band bandpass filter with high selectivity, by employing the fundamental mode and next higher order mode of dual mushroom structures loaded to SIW cavity. The entire filter structure is based on a rectangular SIW cavity and a prototype of the proposed filter is first modeled and simulated using Ansoft HFSS.…”

Section: Introductionmentioning

confidence: 99%

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Dual band bandpass filter based on substrate integrated waveguide loaded with mushroom resonators

Chaudhury

Awasthi

Singh

2020

Micro & Optical Tech Letters

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This article presents a dual band bandpass filter by loading two cascaded mushroom resonators inside the cavity of a rectangular substrate integrated waveguide (SIW). The passbands are generated by exciting TE101 and TE201 modes of dual mushroom structures loaded inside SIW cavity. The fundamental mode, that is, TE101 of the entire filter structure is utilized to create the first passband and the next higher order mode, that is, TE201 of the filter structure is employed for the generation of second passband. Due to the incorporation of mushroom resonators into SIW, which are composite right/left handed transmission lines, the anticipated frequency response represents highly selective passbands with three transmission zeros (TZs) and an improved out‐of‐band response beyond the second passband. The effects of some structural parameters of the filter on the control over coupling parameters (k101 and k201) and quality factor (Q) are studied. This modified SIW based dual bandpass filter is fabricated and measured to verify two passbands centered at 2.25 and 4.1 GHz with 12.9% and 10.8% fractional bandwidth (FBW) and minimum insertion loss of 0.86 dB and 1.6 dB, respectively. Mobile satellite communications, weather radar systems and Wi‐Fi technology are the actual fields where such bandpass filters can be thoroughly applied.

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Dual passband filter based on semicircular cavity substrate integrated waveguide using complementary split ring resonators

Cited by 2 publications

References 4 publications

Hexagon Shape Siw Bandpass Filter With CSRRS Using Artificial Neural Networks Optimization

Hexagon Shape Siw Bandpass Filter With CSRRS Using Artificial Neural Networks Optimization

Dual band bandpass filter based on substrate integrated waveguide loaded with mushroom resonators

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