Co-substituted LiZnTiBi ferrite with equivalent permeability and permittivity for high-frequency miniaturized antenna application

Xie, Fei; Yang, Chen; Bai, Minyu; Wang, Pinglu

doi:10.1016/j.ceramint.2019.06.008

Cited by 21 publications

(6 citation statements)

References 27 publications

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“…Researchers adopted several synthesis techniques to process the pyrochlore-type compounds with various morphologies. [58][59][60][61][62][63][64][65] The following sections elaborated on the various synthesis techniques of Y 2 Ti 2 O 7 pyrochlores.…”

Section: Synthesis and Crystal Growthmentioning

confidence: 99%

Review —Recent Advances in Yttrium Titanate Pyrochlores: Crystal Structure and Impact of Doping Elements

Supriya

2024

ECS J. Solid State Sci. Technol.

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The invention of yttrium titanates (Y2Ti2O7) with various exciting properties in electroceramics has created great attention among industrialists and researchers. Improving the materials of pyrochlore oxides with significant properties for future electronic devices became essential. The Y2Ti2O7 is one such cubic pyrochlore at room temperature, having excellent dielectric and luminescence properties. This article comprehensively reviews the basics and state-of-the-art in developing Y2Ti2O7 ceramics. This material is widely used for electronic devices: transducers, capacitors, optoelectronic components, and light modulators. This review focuses on the fabrication methods and crystal structure mechanisms for optimizing functional properties and current challenges. Moreover, the effect of doping elements of Y2Ti2O7-based ceramics is briefly discussed. Also, future perspectives are provided to spotlight new and trending research directions in this materials research.

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Section: Synthesis and Crystal Growthmentioning

confidence: 99%

Review —Recent Advances in Yttrium Titanate Pyrochlores: Crystal Structure and Impact of Doping Elements

Supriya

2024

ECS J. Solid State Sci. Technol.

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“…The latter is especially important since conductors usually have high value of reflection coefficient, that complicates the use as radiation absorbing materials. Researchers are very interested in ferrite spinels doped with Li, since lithium spinels can have high values of saturation magnetization [13,14] due to irregular distribution of cations over sub-lattices, cut-off frequency of ∼ 500 MHz [15], low values of sintering temperature of 880−920 • C [16], values of electric conductivity with direct current of ∼ 10 −12 −10 −5 Ohm −1 • cm −1 , dielectric losses in a wide range of frequencies [17], low width of resonance line of 1−10 Oe [18].…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic properties of polymer composites Li-=SUB=-0.33-=/SUB=-Fe-=SUB=-2.29-=/SUB=-Zn-=SUB=-0.21-=/SUB=-Mn-=SUB=-0.17-=/SUB=-O-=SUB=-4-=/SUB=-/P(VDF-TFE) in the frequency range 100-7000 MHz

et al. 2022

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The article describes electromagnetic and microwave properties of the polymer composite with the lithium spinel ferrite inclusion of composition Li0.33Fe2.29Zn0.21Mn0.17O4 in the frequency range 100-7000 MHz. It is shown that samples with a mass fraction of ferrite 60, 80% have pronounced radio-absorbing properties, measured using the reflection coefficient on a metal plate (return losses). For a composite with 80% ferrite, the minimum return loss was -37.5 dB at 2.71 GHz with an absorption width at -10 dB of 3 GHz. High absorption characteristics are directly related to the use of ferroelectric polymer P(VDF-TFE) as a binder, which is expressed in the combined action of the absorption mechanisms of the magnetic and ferroelectric phases. Keywords: lithium ferrite, polymer composite, polyvinylidene fluoride, radio-absorbing material.

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“…Последнее особенно важно, поскольку проводники, как правило, имеют высокое значение коэффициента отражения, что затрудняет их использование как радиопоглощающих материалов. Большой интерес для исследователей представляют ферриты-шпинели, допированные Li, поскольку литиевые шпинели могут иметь высокие значения намагниченности насыщения [13,14] за счет нестандартного распределения катионов по подрешеткам, частоты отсечки ∼ 500 МГц [15], низкие значения температуры спекания 880−920 • C [16], значения электропроводности на постоянном токе ∼ 10 −12 −10 −5 Ом −1 • см −1 , диэлектрические потери в широком диапазоне частот [17], низкую ширину линии резонанса 1−10 Э [18].…”

Section: Introductionunclassified

Электромагнитные свойства полимерных композитов Li-=SUB=-0.33-=/SUB=-Fe-=SUB=-2.29-=/SUB=-Zn-=SUB=-0.21-=/SUB=-Mn-=SUB=-0.17-=/SUB=-O-=SUB=-4-=/SUB=-/П(ВДФ-ТФЭ) в области частот 100-7000 МГц

Isaev¹,

Костишин²,

Шакирзянов³

et al. 2022

Физика И Техника Полупроводников

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The article describes electromagnetic and microwave properties of the polymer composite with the lithium spinel ferrite inclusion of composition Li0.33Fe2.29Zn0.21Mn0.17O4 in the frequency range 100 MHz - 7000 MHz. It is shown that samples with a mass fraction of ferrite 60, 80% have pronounced radio-absorbing properties, measured using the reflection coefficient on a metal plate (return losses). For a composite with 80% ferrite, the minimum return loss was -37.5 dB at 2.71 GHz with an absorption width at -10 dB of 3 GHz. High absorption characteristics are directly related to the use of ferroelectric polymer P(VDF-TFE) as a binder, which is expressed in the combined action of the absorption mechanisms of the magnetic and ferroelectric phases.

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Co-substituted LiZnTiBi ferrite with equivalent permeability and permittivity for high-frequency miniaturized antenna application

Cited by 21 publications

References 27 publications

Review —Recent Advances in Yttrium Titanate Pyrochlores: Crystal Structure and Impact of Doping Elements

Review —Recent Advances in Yttrium Titanate Pyrochlores: Crystal Structure and Impact of Doping Elements

Electromagnetic properties of polymer composites Li-=SUB=-0.33-=/SUB=-Fe-=SUB=-2.29-=/SUB=-Zn-=SUB=-0.21-=/SUB=-Mn-=SUB=-0.17-=/SUB=-O-=SUB=-4-=/SUB=-/P(VDF-TFE) in the frequency range 100-7000 MHz

Электромагнитные свойства полимерных композитов Li-=SUB=-0.33-=/SUB=-Fe-=SUB=-2.29-=/SUB=-Zn-=SUB=-0.21-=/SUB=-Mn-=SUB=-0.17-=/SUB=-O-=SUB=-4-=/SUB=-/П(ВДФ-ТФЭ) в области частот 100-7000 МГц

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