Realization of dielectric loaded waveguide filter with substrate integrated waveguide technique based on incorporation of two substrates with different relative permittivity

Aghayari, Hassan; Nourinia, Javad; Ghobadi, Changiz; Mohammadi, Bahman

doi:10.1016/j.aeue.2018.01.008

Cited by 14 publications

(3 citation statements)

References 14 publications

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“…The use of full-wave electromagnetic (EM) simulation software is a standard practice in microwave design today. EM analysis is being used throughout the entire design cycle of microwave devices and systems, starting from topology development [1][2][3][4] through parametric studies [5], to the final refinement of circuit dimensions [6][7][8][9][10][11]. This is primarily because EM analysis is able to accurately account for various phenomena exerting significant effects on circuit responses, such as EM cross-coupling [12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Cost-Efficient Two-Level Modeling of Microwave Passives Using Feature-Based Surrogates and Domain Confinement

Pietrenko-Dabrowska,

Koziel,

Zhang

2023

Electronics

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A variety of surrogate modeling techniques has been utilized in high-frequency design over the last two decades. Yet, the curse of dimensionality still poses a serious challenge in setting up reliable design-ready surrogates of modern microwave components. The difficulty of the modeling task is only aggravated by nonlinearity of circuit responses. Consequently, constructing a practically usable surrogate model, valid across extended ranges of material, geometry, and operational parameters, is far from easy. As a matter of fact, conventional modeling techniques are merely capable of building models for microwave structures featuring a relatively small number of designable parameters within reduced ranges thereof. One possible way of mitigating these obstacles may be the employment of the recently proposed two-stage performance-driven modeling approach. Therein, the surrogate model domain is narrowed down to the section of the space where the vectors of adequate quality are located, thereby permitting significantly reducing the cost of acquiring the training data. Seeking even further cost reduction, this work introduces a novel modeling framework, which exploits problem-specific knowledge extracted from the circuit responses to achieve substantial cost-savings of training data acquisition. In our methodology, the modeling procedure targets response features instead of the complete responses. The response features are the characteristic locations of the circuit response, such as relevant minima or maxima over selected frequency bands. The dependency of the coordinates of the said features on circuit dimensions is considerably less nonlinear than is observed for the complete characteristics, which enables sizable reduction of the data acquisition cost. Numerical validation of our procedure involving three microwave structures corroborates its remarkable efficiency, which allows for setting design-ready surrogates using only a handful of samples.

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Section: Introductionmentioning

confidence: 99%

Cost-Efficient Two-Level Modeling of Microwave Passives Using Feature-Based Surrogates and Domain Confinement

Pietrenko-Dabrowska,

Koziel,

Zhang

2023

Electronics

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“…In the field of filter design, SIW structures have been adopted in a great variety of filter topologies [9]- [11]. Several SIW-EBG filters using various techniques have been presented in last years [12]- [14]. Recently, a new filter typology based on perforations of the dielectric substrate has been developed [15]- [17], adding flexibility to the designs and extending this concept to half-mode and folded structures.…”

Section: Introductionmentioning

confidence: 99%

Band-pass filters based on periodic structures in SIW technology

Martínez

Coves

Bronchalo

et al. 2019

AEU - International Journal of Electronics and Communications

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“…In addition, it has been studied how to enhance the response of these filters (fabricated utilising 3D printing methods in [155]) by the use of tuning screws. In [141,175], a comparable collection of evanescent filter topologies is It should be noted that the suggested structures are referred to as evanescent mode waveguide filters since the frequency of the operating mode, the TE 10 , would be under its cut-off frequency at the waveguide section with reduced width (a ev ) if the ABSplus were not introduced. This mode can be propagated when the dielectric material is placed inside this section thanks to the higher permittivity value and its influence on the cut-off frequency.…”

Section: Introductionmentioning

confidence: 99%

Development of resonant cavity-based microwave filters for axion detection

García-Barceló¹

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Realization of dielectric loaded waveguide filter with substrate integrated waveguide technique based on incorporation of two substrates with different relative permittivity

Cited by 14 publications

References 14 publications

Cost-Efficient Two-Level Modeling of Microwave Passives Using Feature-Based Surrogates and Domain Confinement

Cost-Efficient Two-Level Modeling of Microwave Passives Using Feature-Based Surrogates and Domain Confinement

Band-pass filters based on periodic structures in SIW technology

Development of resonant cavity-based microwave filters for axion detection

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