Characterization of Relative Complex Permittivity and Permeability for Magneto-Dielectric Sheets

Hosseinbeig, Ahmad; Marathe, Shubhankar; Pommerenke, David

doi:10.1109/temc.2017.2763087

Cited by 8 publications

(4 citation statements)

References 21 publications

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“…The data for the PANi permittivity calculated in reference [29] pertain to the frequency range of 4-18 GHz. In order to render the dielectric dispersion values for the lower and higher frequencies (specifically, 1-4 GHz and 8-20 GHz) as well, the nth-order dielectric dispersive fitting tool implemented in CST MWS was utilized to model the dielectric properties of these frequencies, as described in reference [37,38]. The complex permittivity of PANi is plotted in Figure 2; it can be seen that the complex permittivity of PANi is dispersive in the entire frequency range of interest (i.e., 1-20 GHz).…”

Section: Design and Modelingmentioning

confidence: 99%

Layered Structure Based on PANi and SiO2 to Absorb HPM to Protect Systems and Devices

Sheta,

Sutinjo

2024

Crystals

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A layered structure composed of polyaniline (PANI) and silicon dioxide (SiO2) is proposed in this article. It was developed to obtain ultra-wideband and high-power microwave absorption. Due to the high thermal stability of PANi and SiO2 above 400 °C, the proposed structure is able to absorb high amounts of power. The electromagnetic behavior of the structure is examined by full-wave simulation to investigate its ability to absorb microwave frequencies ranging from 1 to 20 GHz under both normal and oblique incidences of electromagnetic waves. Recent studies have produced results with a limited absorption range and a less consistent angular incidence than the structure presently being examined. Also, the layer-by-layer deposition of thin film facilitates the manufacturing procedure. Furthermore, owing to the high thermal stability of the proposed structure, the absorption of high-power microwaves is superior to that of alternative methodologies.

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Section: Design and Modelingmentioning

confidence: 99%

Layered Structure Based on PANi and SiO2 to Absorb HPM to Protect Systems and Devices

Sheta,

Sutinjo

2024

Crystals

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“…The second group comprises genetic, evolutionary, or optimization algorithms and analytical equations [11], which cannot be solved directly. The last group of methods proposes using optimization algorithms using electromagnetic simulators, which try to find similarities between measurements and simulations to study the characteristics of materials [12].…”

Section: Introductionmentioning

confidence: 99%

Reference-Plane Invariant Free Space Dielectric Material Characterization up to 330 GHz

Moreno-Rodríguez,

Pérez-Escribano,

Ortiz-Ruiz

et al. 2024

Preprint

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This paper describes the process followed to implement a system to characterize the complex permittivity of materials in the 10-330 GHz frequency band. Firstly, the method used and the system's calibration process are shown, consisting of a double calibration TRL (Thru-Reflect-Line) and GRL (Gated-Reflect-Line). Subsequently, a smoothing technique is used to improve the accuracy of the results. Finally, a test is performed on quartz and glass fiber samples, showing that the results are quite reliable over the entire measured bandwidth.

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“…The promising results that have emerged from studies of the advantages and limitations of designing RF and microwave devices using magnetodielectric materials, instead of ferrites or pure dielectric materials, open up new opportunities for the development of compact and reconfigurable future generation high-frequency circuits and systems 1 – 3 . Reducing the size of microwave devices by a factor of the product of the inverse squares of the relative permittivity and permeability, while keeping the wave impedance nearly unaltered (by keeping the ratio of the relative permeability to permittivity constant) is very attractive, with the result that magnetodielectric materials are now being used in electromagnetic interference (EMI) suppression, electromagnetic absorbers, and device reconfigurability 3 , 4 .…”

Section: Introductionmentioning

confidence: 99%

“…This is not a straightforward method, and there are many fabrication-related factors that affect their electromagnetic properties on the macroscopic level. For these reasons, precise characterization of such materials is essential 4 . There are two kinds of techniques for characterizing magnetodielectric materials at microwave frequencies: the transmission–reflection type and the resonant type.…”

Section: Introductionmentioning

confidence: 99%

Novel MNZ-type microwave sensor for testing magnetodielectric materials

Jha

Delmonte

Lamęcki

et al. 2020

Sci Rep

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A novel microwave sensor with the mu-near-zero (MNZ) property is proposed for testing magnetodielectric material at 4.5 GHz. The sensor has a double-layer design consisting of a microstrip line and a metal strip with vias on layers 1 and 2, respectively. The proposed sensor can detect a unit change in relative permittivity and relative permeability with a difference in the operating frequency of 45 MHz and 78 MHz, respectively. The MNZ sensor is fabricated and assembled on two layers of Taconic RF-35 substrate, with thicknesses of 0.51 mm and 1.52 mm, respectively, for the measurement of the sample under test using a vector network analyzer. The dielectric and magnetic properties of two standard dielectric materials (Taconic CER-10 and Rogers TMM13i) and of yttrium–gadolinium iron garnet are measured at microwave frequencies. The results are found to be in good agreement with the values available in the literature, which shows the applicability of the prototype for sensing of magnetodielectric materials.

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Characterization of Relative Complex Permittivity and Permeability for Magneto-Dielectric Sheets

Cited by 8 publications

References 21 publications

Layered Structure Based on PANi and SiO2 to Absorb HPM to Protect Systems and Devices

Layered Structure Based on PANi and SiO2 to Absorb HPM to Protect Systems and Devices

Reference-Plane Invariant Free Space Dielectric Material Characterization up to 330 GHz

Novel MNZ-type microwave sensor for testing magnetodielectric materials

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