Miniature antenna based on magnetoelectric composites

Петров, Р. В.; Татаренко, А. С.; Pandey, Suman; Srinivasan, G.; Mantese, J. V.; Azadegan, R.

doi:10.1049/el:20080325

Cited by 41 publications

(26 citation statements)

References 4 publications

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“…A new approach was recently found that uses a novel engineered ME composite material. A half-wavelength resonant microstrip antenna on an ME composite of nickel zinc ferrites (Ni 1´x Zn x Fe 2 O 4 :NZFO) and ferroelectric BST was made by Petrov et al [140]. They concentrated on the miniaturization of the 100-MHz antenna, and its effects on impedance matching, bandwidth and efficiency (Figure 19b).…”

Section: Me Antennamentioning

confidence: 99%

Status and Perspectives of Multiferroic Magnetoelectric Composite Materials and Applications

et al. 2016

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Multiferroic magnetoelectric (ME) composites are attractive materials for various electrically and magnetically cross-coupled devices. Many studies have been conducted on fundamental understanding, fabrication processes, and applications of ME composite material systems in the last four decades which has brought the technology closer to realization in practical devices. In this article, we present a review of ME composite materials and some notable potential applications based upon their properties. A brief summary is presented on the parameters that influence the performance of ME composites, their coupling structures, fabrications processes, characterization techniques, and perspectives on direct (magnetic to electric) and converse (electric to magnetic) ME devices. Overall, the research on ME composite systems has brought us closer to their deployment.

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Section: Me Antennamentioning

confidence: 99%

Status and Perspectives of Multiferroic Magnetoelectric Composite Materials and Applications

et al. 2016

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“…the magnetoelectric (ME) effect. Multiferroic composites constructed by combining magnetostrictive (MS) and piezoelectric materials have exhibited very large ME coefficients and are already employed in many prototype device applications such as magnetic field sensors [2], multi-state storage cells [3], and for use as miniature antennae [4]. In ME composites, the ME effect is a strainmedia product effect between the piezoelectric effect and the MS effect.…”

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confidence: 99%

The Influence of Flexural Deformation on the Static Magnetoelectric Coefficient of a Bilayered Magnetoelectric Composite

Shi

Tong

Zheng

et al. 2013

Materials Research Letters

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In the bilayered Ni/Pb(Zr, Ti)O 3 (PZT) composite, upon the application of a magnetic field, a strong flexural deformation was observed. Using an analogous scenario involving a known thermo bimetal, a simple formula for the curvature in the bilayered Ni/PZT composite was obtained. This result permitted the strain distribution and the static magnetoelectric (ME) coefficient in the bilayer composite to be easily solved. Experimental and theoretical results quantitatively explained how the flexural deformation weakened the ME effect in the bilayer composite, which agreed well with the experimental results from many previous experiments. Keywords: Layered Structures, Flexural Deformation, Magnetoelectric CompositeIntroduction Multiferroic materials have been drawn increasing interest due to the physics inherent in the coexistence of two or more states of ferrocity and their significant multi-field coupling effect [1], e.g. the magnetoelectric (ME) effect. Multiferroic composites constructed by combining magnetostrictive (MS) and piezoelectric materials have exhibited very large ME coefficients and are already employed in many prototype device applications such as magnetic field sensors [2], multi-state storage cells [3], and for use as miniature antennae [4]. In ME composites, the ME effect is a strainmedia product effect between the piezoelectric effect and the MS effect. The stress/strain transfer between the two phases plays a key role during the ME coupling, which is significantly affected by the structure of the composite. Until now, various topological structures have been designed [5] and used to prepare ME composites, such as 0-3 [6,7], 1-3 [8-10], 2-2 [11-13], and 2-1 [14] connectivity structures. To ensure simple fabrication and large resulting ME coefficients, laminated (2-2) ME composites containing bilayer, trilayer, or multilayer structures are the most widely studied [15][16][17][18].The laminated bilayer ME composites have shown very high ME coefficients and relatively low resonance frequencies when loaded in flexural modes. Their flexural

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“…In particular, strain coupled composites of piezoelectric and magnetostrictive phases can link electric field and the magnetic fields to exhibit the giant multiferroic coupling needed for practical applications [14]. It has been proposed to utilize such composite multiferroic materials to miniaturize the RF antenna dimensions because they exhibit high permittivity and high permeability simultaneously [16]. Another application of composite multiferroic material is to create frequency reconfigurable antennas by altering the magnetic properties of the material with electric field [17].…”

Section: Introductionmentioning

confidence: 99%

Bulk Acoustic Wave-Mediated Multiferroic Antennas: Architecture and Performance Bound

Yao

Wang

Keller

et al. 2015

IEEE Trans. Antennas Propagat.

161

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Time-varying magnetic flux can be induced from the dynamic mechanical strain of acoustic waves in multiferroic devices that are comprised of piezoelectric and magnetostrictive material. Such devices can be used to create electromagnetic radiation and to alleviate the platform effect associated with low-profile conformal antennas. In this paper, a bulk acoustic wave (BAW)mediated multiferroic antenna structure is proposed. Its potential for efficient radiation of electromagnetic waves is evaluated by analytically deriving the lower bound of its radiation quality factor (Q factor). A one-dimensional (1-D) multiscale finite-difference time-domain (FDTD) technique is developed to predict the bilateral, dynamic coupling between the acoustic waves and electromagnetic waves. The simulation shows a decaying stress profile in the BAW resonator structure, which implies that the radiation of the electromagnetic waves acts as a damping load to the acoustic resonance. The simulated radiation Q factor matches well with the analytical derivations and the agreement validates both the operating principle of the proposed antenna and the FDTD algorithm developed. The study concludes that efficient antennas may be realized at GHz frequencies with thin film multiferroic material that has thicknesses of the order of 10 −5 wavelength.Index Terms-Bulk acoustic waves (BAW), conformal antennas, film bulk acoustic resonators (FBARs), finite-difference time-domain (FDTD) method, multiferroic antennas, multiferroic material, platform effect.

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Miniature antenna based on magnetoelectric composites

Cited by 41 publications

References 4 publications

Status and Perspectives of Multiferroic Magnetoelectric Composite Materials and Applications

Status and Perspectives of Multiferroic Magnetoelectric Composite Materials and Applications

The Influence of Flexural Deformation on the Static Magnetoelectric Coefficient of a Bilayered Magnetoelectric Composite

Bulk Acoustic Wave-Mediated Multiferroic Antennas: Architecture and Performance Bound

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