Substrate Integrated Waveguide Filters Based on a Dielectric Layer With Periodic Perforations

Silvestri, Lorenzo; Massoni, Enrico; Tomassoni, Cristiano; Coves, Á.; Bozzi, Maurizio; Perregrini, Luca

doi:10.1109/tmtt.2017.2709745

Cited by 46 publications

(21 citation statements)

References 25 publications

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“…The depth of the rejected band is related to the order of the filter, as stated in the study performed in [7]. By increasing the number of the filter sections, the value of that parameter can be increased.…”

Section: B Depth Of the Rejected Bandmentioning

confidence: 99%

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Controlled Out-of-Band Rejection of Filters Based on SIW With Alternating Dielectric Line Sections

Sánchez

Bachiller

Nova

et al. 2019

IEEE Microw. Wireless Compon. Lett.

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A study for managing the out-of-band rejection in a new topology of filters based on Substrate Integrated Waveguide (SIW) with Alternating Dielectric Line Sections (ADLS) is presented in this paper. ADLS is a filtering structure consisting on line sections of the same width but with alternating air and dielectric filling. The design of the lengths of each section provides the central frequency and the bandwidth of a band-pass filter response. The proper selection of the structure substrate dielectric permittivity can increase the rejection band up to 2fo. Moreover, the selection of the filter order (i.e. the number of sections with and without dielectric) can affect the depth of the rejection band. A study of width and depth of the rejection band is performed with different permittivities and orders for two different filters. Then, for validation purposes, prototypes of both filters have been manufactured and measured.

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Section: B Depth Of the Rejected Bandmentioning

confidence: 99%

“…The new filters based on SIW with Alternating Dielectric Line Sections (ADLS) [6] have properties between the ones of SIW and ESIW filters in terms of size and insertion loss. Furthermore, these structures can control the rejection band by changing the dielectric permittivity and/or filter order [7].…”

Section: Introductionmentioning

confidence: 99%

Controlled Out-of-Band Rejection of Filters Based on SIW With Alternating Dielectric Line Sections

Sánchez

Bachiller

Nova

et al. 2019

IEEE Microw. Wireless Compon. Lett.

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“…However, the recent demands of the microwave industry enforce the development of miniaturized, integrated technology compatible planar structures, which limits the applicability of bulky metallic cavity. The advent of the planar substrate integrated waveguide (SIW) technology-based structure is found to be a viable option to fulfill the various earlier mentioned demands [13][14][15]. That is the main reason that the design and implementation of planar SIW structure-based devices have grown at a rapid pace in recent years in place of metallic waveguides and cavities [14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

“…The advent of the planar substrate integrated waveguide (SIW) technology-based structure is found to be a viable option to fulfill the various earlier mentioned demands [13][14][15]. That is the main reason that the design and implementation of planar SIW structure-based devices have grown at a rapid pace in recent years in place of metallic waveguides and cavities [14][15][16][17]. However, the literature available SIW cavity dielectric sensor mainly employs the conventional small material perturbation formulation [18,19] which only better suited for the metallic cavity [12].…”

Section: Introductionmentioning

confidence: 99%

Novel substrate integrated waveguide cavity-based unified multiband permittivity and permeability estimation approach

Tiwari

Singh

Akhtar

2020

Journal of Electromagnetic Waves and Applications

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A novel approach of multiband real permittivity and permeability estimation of the magnetic composites using a modified under coupled multimodal (TE10p) substrate integrated waveguide (SIW) cavity is presented. The proposed schemes allow the accurate wideband microwave characterization of the magneto-dielectric composites by using the higher-order modes of the designed SIW cavity. The analytical closed-form modified formulation is developed to calculate the permittivity and permeability over the wide frequency range, 10-20 GHz. Consequently, a unified empirical formulation is also developed, which can be used to generate the approximate prior values of multimodal permittivity and permeability for the synthesized magnetic composites, which is usually not known in advance. The proposed analytical and empirical approaches are validated numerically and experimentally, corresponding to various test samples. The estimated parameters using the proposed analytical approach are found to be in quite close agreement, error < 5%, with the corresponding reference values and empirically generated values.

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“…Among them, a widely used solution is based on direct-coupled cavity resonators [2]. An alternative SIW filtering structure has been recently proposed in [3], based on the periodic perforation of the dielectric substrate with air holes in a constant width structure. Being a very promising solution, it has some fabrication issues related to the requested number (and dimensions) of perforated holes.…”

Section: Introductionmentioning

confidence: 99%

Microwave Filter Based on Substrate Integrated Waveguide With Alternating Dielectric Line Sections

Sánchez

Bachiller

Juliá

et al. 2018

IEEE Microw. Wireless Compon. Lett.

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Sánchez-Marín, JR.; Bachiller Martin, MC.; Juliá Morte, M.; Nova-Giménez, V.; Esteban González, H.; Boria Esbert, VE. (2018). Microwave Filter based on Substrate Integrated Waveguide with Alternating Dielectric Line Sections. IEEE Microwave and Wireless Components Letters. 28(11):990-992. https://doi.Abstract-A new topology of microwave filter based on Substrate Integrated Waveguide (SIW) with alternating dielectric line sections is presented in this paper. The two alternating sections are waveguides without and with dielectric material acting, respectively, as the inverters and the resonant sections of the proposed filter. This topology allows to easily design and manufacture compact filters with lower losses and higher rejection band than other available SIW realizations. For validation purposes, a prototype of a 4-pole bandpass filter, based on alternating dielectric line sections, has been designed and manufactured, including successful experimental results.Index Terms-Substrate Integrated Waveguide (SIW), planar structure, filter, alternating dielectric line sections.

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Substrate Integrated Waveguide Filters Based on a Dielectric Layer With Periodic Perforations

Cited by 46 publications

References 25 publications

Controlled Out-of-Band Rejection of Filters Based on SIW With Alternating Dielectric Line Sections

Controlled Out-of-Band Rejection of Filters Based on SIW With Alternating Dielectric Line Sections

Novel substrate integrated waveguide cavity-based unified multiband permittivity and permeability estimation approach

Microwave Filter Based on Substrate Integrated Waveguide With Alternating Dielectric Line Sections

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