A generalized lumped-element equivalent circuit for tunable magnetoelectric microwave devices with multi-magnetoelectric laminates

Zhou, Huaiying; Lian, Jing

doi:10.1063/1.4878160

Cited by 11 publications

(6 citation statements)

References 38 publications

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“…[55][56][57]. H.-M. Zhou and J. Lian in [58] applied the equivalent circuit method in designing tunable ME microwave devices. Relatively recently, an interesting feature of the dependence of the FMR line shift under the action of an electric field on the direction of the bias field relative to the crystallographic axes of the magnetostrictive phase was discovered.…”

Section: Introductionmentioning

confidence: 99%

Modeling the Magnetoelectric Composites in a Wide Frequency Range

Bichurin,

Sokolov,

Ivanov

et al. 2023

Materials

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This article presents a general theory of the ME effect in composites in the low- and high-frequency ranges. Besides the quasi-static region, the area of electromechanical resonance, including longitudinal, bending, longitudinal shear, and torsional modes, is considered in more detail. To demonstrate the theory, expressions of ME voltage coefficients are obtained for symmetric and asymmetric layered structures. A comparison is made with the experimental results for the GaAs/Metglas and LiNbO3/Metglas structures. The main microwave ME effect, consisting of the FMR line shift in an electric field, for the ferromagnetic metals, their alloys, and YIG ferrite using various piezoelectrics is discussed. In addition to analytical calculations, in the article, finite element modeling is considered. The calculation methods and experimental results are compared for some composites.

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Section: Introductionmentioning

confidence: 99%

Modeling the Magnetoelectric Composites in a Wide Frequency Range

Bichurin,

Sokolov,

Ivanov

et al. 2023

Materials

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“…[23,24] Later, Zhou et al proposed a ME tunable microwave filter configured with multi-ME composites and a coupling microstrip line and established its generalized lumped equivalent circuit model to study the center frequency and bandwidth. [25,26] Recently, Li et al presented a multi-ME sensors array with PZT/FeCoSiB thin films in series and parallel connection, enhancing the sensitivity of sensors by 1.65 times and resonance bandwidth by 2 times, respectively. [27] Optimized for the bandwidth of high-and low-frequency energy harvesting circuits, the improvement in structure was mainly in the aspects of series-parallel connection and array design, which was similar to design for sensors.…”

Section: Introductionmentioning

confidence: 99%

A Giant Dual‐Resonant in Magnetoelectric Composite Based on Electrical and Electromechanical Coupling Towards Enhanced Working Bandwidth and Frequency Tuning

Leung

Liu

et al. 2022

Physica Rapid Research Ltrs

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Expanding the resonance bandwidth and achieving tunable frequency are crucial for applying magnetoelectric (ME) composites in variable environments to realize their application, including magnetic and current sensors, tunable microwave devices, energy harvesters, etc. Herein, a dual‐coupling mode of combining electrical and electromechanical to implement wide bandwidth and frequency tuning in a ME laminated composite connected to an external inductor is investigated. Furthermore, this dual‐coupling mode is theoretically and experimentally studied and two resonances based on an equivalent circuit method are predicted. When the ME composite is connected to an inductor of 0.5 mH with an internal resistance of 31.74 Ω, the experimental result shows that the bandwidth increased by 429.32% compared with the original. In contrast, while the ME composite is connected to an inductor of 0.5 mH with an internal resistance of 12.16 Ω, two ME voltage coefficients (αV) are dramatically increased by 302.29% and 356.80% at resonance peaks, and the resonance frequencies are proportionally tuned of 6.84% (Δf1 = 6.24 kHz) and 4.74% (Δf2 = 4.32 kHz), respectively. These experimental results are significantly in agreement with the theoretical analysis. Therefore, the proposed method effectively achieves bandwidth expansion, ME coupling coefficient enhancement, and resonance frequency tuning.

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“…After Tsai et al [37] established the equivalent circuit model of the double stop-band filter which consisted of two cascaded band-stop filters. In recent years, for the reciprocal dual-tunable microwave magnetoelectric device, Zhou et al [38][39][40][41] treated the voltage of the piezoelectric layer as a magnetic field and established the lumped circuit models of the direct conduction band, the coupled band and T-type magnetoelectric microwave devices, which greatly promoted the application of the equivalent circuit model. However, the above lumped equivalent circuit models focus on the reciprocal twoport devices, and the lumped equivalent circuit model of nonreciprocal frequency band tunable microwave devices is not correlatively researched.…”

Section: Introductionmentioning

confidence: 99%

Lumped modeling with circuit elements for nonreciprocal magnetoelectric tunable band-pass filter

Zhou

Zhang

et al. 2016

Chinese Phys. B

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This paper presents a lumped equivalent circuit model of the nonreciprocal magnetoelectric tunable microwave bandpass filter. The reciprocal coupled-line circuit is based on the converse magnetoelectric effect of magnetoelectric composites, includes the electrical tunable equivalent factor of the piezoelectric layer, and is established by the introduced lumped elements, such as radiation capacitance, radiation inductance, and coupling inductance, according to the transmission characteristics of the electromagnetic wave and magnetostatic wave in an inverted-L-shaped microstrip line and ferrite slab. The nonreciprocal transmission property of the filter is described by the introduced T-shaped circuit containing controlled sources. Finally, the lumped equivalent circuit of a nonreciprocal magnetoelectric tunable microwave band-pass filter is given and the lumped parameters are also expressed. When the deviation angles of the ferrite slab are respectively 0 • and 45 • , the corresponding magnetoelectric devices are respectively a reciprocal device and a nonreciprocal device. The curves of S parameter obtained by the lumped equivalent circuit model and electromagnetic simulation are in good agreement with the experimental results. When the deviation angle is between 0 • and 45 • , the maximum value of the S parameter predicted by the lumped equivalent circuit model is in good agreement with the experimental result. The comparison results of the paper show that the lumped equivalent circuit model is valid. Further, the effect of some key material parameters on the performance of devices is predicted by the lumped equivalent circuit model. The research can provide the theoretical basis for the design and application of nonreciprocal magnetoelectric tunable devices.

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A generalized lumped-element equivalent circuit for tunable magnetoelectric microwave devices with multi-magnetoelectric laminates

Cited by 11 publications

References 38 publications

Modeling the Magnetoelectric Composites in a Wide Frequency Range

Modeling the Magnetoelectric Composites in a Wide Frequency Range

A Giant Dual‐Resonant in Magnetoelectric Composite Based on Electrical and Electromechanical Coupling Towards Enhanced Working Bandwidth and Frequency Tuning

Lumped modeling with circuit elements for nonreciprocal magnetoelectric tunable band-pass filter

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