Accurate Characterization of Electromagnetic Band-Gap Structures

Aladadi, Yosef T.; Alkanhal, Majeed A. S.

doi:10.1109/access.2021.3109085

Cited by 3 publications

(2 citation statements)

References 37 publications

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“…There are many bandgap prediction methods [7], [8], [10], [19], [28]- [36] in the open literature for analyzing the EBG structures. Lumped element equivalent circuit models are presented in [10], [19], [28], [29] for estimating the bandgap of some planar EBG structures, such as low-profile antenna applications.…”

Section: Introductionmentioning

confidence: 99%

“…Hence, they have a significant computational burden. In [8], an accurate free space method to characterize the frequency behavior of the EBGs using effective electromagnetic parameters is presented. The free space method is used for determining the bandgap regions by i) computing the scattering parameters of the EBG structure with an equivalent circuit model or with full-wave simulation, ii) extracting the effective impedance and refractive index values, iii) finding the complex effective permittivity, and permeability values, iv) obtaining the effective phase and attenuation constants.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of AFGSM Methods for Some Electromagnetic Bandgap Structures: From Analysis to Applied Antenna Design

2023

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Electromagnetic Bandgap (EBG) structures that exhibit various performances, such as preventing the electromagnetic wave propagation and reflecting an incident wave within the stopband, have unique electromagnetic characterization. Due to this reason, accurate analysis and design of the EBG structures are crucial to enhance the integrated system performance. This paper concentrates on the characterization of some planar EBGs using the Auxiliary Functions of Generalized Scattering Matrix (AFGSM) methods, with particular importance on an in-depth consideration of its bandgaps. The AFGSM method is applied to the planar EBG structures in the literature for the first time. The well-known kinds (symmetric and asymmetric cases) of mushroom type and multilayer EBG structures are considered to verify the presented method. Analysis results are compared with the Conventional Eigenvalue Equation (C-EIV) and the Generalized Scattering Matrix based Eigenvalue Equation (GSM-EIV) methods. Low computation load and accurate results are obtained to analyze the planar EBG structures with the AFGSM method due to using transmission line model. In addition, a design methodology is proposed for a chosen planar EBG structure using the AFGSM methods. Geometrical parameters of interested EBG problems are determined for acquiring the stopband frequency region of interest using the scattering parameters of unit cell configuration. The mushroom EBG model along one and two-dimensional axes is used in an antenna application to decrease mutual coupling between antenna elements. Three different scenarios are simulated in the HFSS electromagnetic simulation design environment to understand the effect of mutual coupling reduction in the antenna problem of the designed EBG structure via the AFGSM method. All designed antennas are manufactured, and the measurement results are in good agreement with the simulation results. The measurement results of the fabricated antenna application example including designed EBG using the proposed AFGSM method is compared with the existing similar problems with the same and different EBG models. It has been demonstrated that bandgap analysis, design of the planar EBG structures and integration of considered EBG model to a design application can be accurately and quickly achieved with the given methodology using the AFGSM method.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigation of AFGSM Methods for Some Electromagnetic Bandgap Structures: From Analysis to Applied Antenna Design

2023

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Structural, Morphological, Electrical, Magnetic, and dielectric properties of Zn0.5-xCa0.1Co0.4+xFe2O4 through the sol-gel method for flexible substrates in food chemical sensing

Billa,

Tariqul Islam,

Alam

et al. 2024

Materials & Design

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Effects of ground plane on a square graphene ribbon patch antenna designed on a high-permittivity substrate with PBG structures

et al. 2023

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In this paper, a wide bandwidth (20 GHz) and small sized (200 × 200 × 50 µm3) terahertz (THz) square graphene ribbon antenna using Photonic Band Gap (PBG) substrate are investigated in the 0.6–0.8 THz band. The proposed antenna consists of graphene as radiating patch mounted on four types of ground plane. The important aim of this work is to eliminate the second resonance frequency by utilize a several types of ground plane and keep a single frequency by improving the performance of the proposed antenna. The effect of change ground plane on the performance of antenna is compared, in terms of reflection coefficient, bandwidth, directivity and radiation pattern. The antenna has achieved good gain (7.62 dB) and good directivity (6.38 dB) in comparison to work reported in the literature.

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Accurate Characterization of Electromagnetic Band-Gap Structures

Cited by 3 publications

References 37 publications

Investigation of AFGSM Methods for Some Electromagnetic Bandgap Structures: From Analysis to Applied Antenna Design

Investigation of AFGSM Methods for Some Electromagnetic Bandgap Structures: From Analysis to Applied Antenna Design

Structural, Morphological, Electrical, Magnetic, and dielectric properties of Zn0.5-xCa0.1Co0.4+xFe2O4 through the sol-gel method for flexible substrates in food chemical sensing

Effects of ground plane on a square graphene ribbon patch antenna designed on a high-permittivity substrate with PBG structures

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