Ga ions-tailored magnetic-dielectric properties of Mg–Cd composites for high-frequency, miniature and wideband antennas

Gan, Gongwen; Zhang, Dainan; Wang, Gang; Huang, Xin; Rao, Yiheng; Wang, Xueying; Zhang, Huaiwu; Chen, Ray T.

doi:10.1016/j.ceramint.2019.12.073

Cited by 8 publications

(2 citation statements)

References 29 publications

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“…[38] Then, the BiFeO 3 enters into the interstice between the Ba(CoTi) x Fe 12−2x O 19 particles. [39] The lattice parameters of the bulk samples change with the substitution of Fe 3+ by Co 2+ -Ti 4+ . Among them, lattice constants a and c of the bulk samples are calculated using different diffraction peaks in the XRD patterns.…”

Section: Structural Characterizationmentioning

confidence: 99%

Electromagnetic wave absorption properties of Ba(CoTi)_xFe_12–2xO₁₉@BiFeO₃ in hundreds of megahertz band

Xu¹,

Zheng²,

Wang³

et al. 2022

Chinese Phys. B

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In this work, the high-performance electromagnetic (EM) wave absorption material Ba(CoTi)xFe12-2xO19@BiFeO3 was prepared by solid-state reaction, and its EM wave absorption properties were deeply studied. The results revealed that Ba(CoTi)xFe12-2xO19@BiFeO3 could obtain excellent absorption properties in hundreds of megahertz by adjusting the Co2+–Ti4+ content. The best comprehensive property was obtained for x = 1.2, where the optimal reflection loss (RL) value reaches –30.42 dB at about 600 MHz with thickness of 3.5 mm, and the corresponding effective absorption band covers frequency range of 437 MHz–1 GHz. Moreover, the EM wave absorption mechanism was studied based on simulation methods. The simulated results showed that the excellent EM wave absorption properties of Ba(CoTi)xFe12-2xO19@BiFeO3 mainly originated from the internal loss caused by natural resonance, and interface cancellation further improved the absorption properties and resulted in RL peaks.

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Section: Structural Characterizationmentioning

confidence: 99%

Electromagnetic wave absorption properties of Ba(CoTi)_xFe_12–2xO₁₉@BiFeO₃ in hundreds of megahertz band

Xu¹,

Zheng²,

Wang³

et al. 2022

Chinese Phys. B

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“…Here, 3Ba (1-x) Sr x O•2CoO•12Fe 2 O 3 (x = 0.0, 0.2, 0.4 and 0.6) ferrites with 2.5wt% Bi 2 O 3 were prepared. The magnetic-dielectric properties of the resultant materials were studied to achieve equal permeability and permittivity and low loss properties over a long frequency band in the high frequency range [24].…”

Section: Introductionmentioning

confidence: 99%

Sr2+ Ion Substitution Enhanced Dielectric Properties of Co(2)Z Ferrites for VHF Antenna Substrate

Wang

Gan

2022

Metals

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The effect of Sr2+ ions on the microstructure and high frequency properties of 2.5 wt% Bi2O3 added to Co(2)Z hexaferrites (3Ba(1-x)SrxO•2CoO•12Fe2O3, x = 0.0, 0.2, 0.4 and 0.6) synthesised using the solid-state reaction method was investigated. Experimental results indicate that the dielectric properties were markedly enhanced with the increase in the content of Sr2+ ions, thereby increasing the miniaturisation factor, which enables a size reduction in a long frequency range. Slight changes to saturation magnetisation (Ms) and coercivity (Hc) were observed, i.e., the saturation magnetisation (Ms) decreased from 39.99 to 38.11 emu/g, and coercivity (Hc) increased from 59.05 to 65.21 Oe when x increased from 0.0 to 0.6. Meanwhile, ε′ increased from approximately 8 to 12, indicating the invariability in μ′. In addition, the processed materials exhibit relatively low magnetic loss and dielectric loss (magnetic loss tanδμ ≈ 0.08 and dielectric loss (tanδε ≈ 0.007)). These results indicate that the substituted CO(2)Z ferrites have excellent potential in high-frequency antenna applications.

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Bi3+ doping-adjusted microstructure, magnetic, and dielectric properties of nickel zinc ferrite ceramics for high frequency LTCC antennas

Yang

Zhang

Rao

et al. 2020

Ceramics International

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Ga ions-tailored magnetic-dielectric properties of Mg–Cd composites for high-frequency, miniature and wideband antennas

Cited by 8 publications

References 29 publications

Electromagnetic wave absorption properties of Ba(CoTi)_xFe_12–2xO₁₉@BiFeO₃ in hundreds of megahertz band

Electromagnetic wave absorption properties of Ba(CoTi)_xFe_12–2xO₁₉@BiFeO₃ in hundreds of megahertz band

Sr2+ Ion Substitution Enhanced Dielectric Properties of Co(2)Z Ferrites for VHF Antenna Substrate

Bi3+ doping-adjusted microstructure, magnetic, and dielectric properties of nickel zinc ferrite ceramics for high frequency LTCC antennas

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Ga ions-tailored magnetic-dielectric properties of Mg–Cd composites for high-frequency, miniature and wideband antennas

Cited by 8 publications

References 29 publications

Electromagnetic wave absorption properties of Ba(CoTi) x Fe12–2x O19@BiFeO3 in hundreds of megahertz band

Electromagnetic wave absorption properties of Ba(CoTi) x Fe12–2x O19@BiFeO3 in hundreds of megahertz band

Sr2+ Ion Substitution Enhanced Dielectric Properties of Co(2)Z Ferrites for VHF Antenna Substrate

Bi3+ doping-adjusted microstructure, magnetic, and dielectric properties of nickel zinc ferrite ceramics for high frequency LTCC antennas

Contact Info

Product

Resources

About

Electromagnetic wave absorption properties of Ba(CoTi)_xFe_12–2xO₁₉@BiFeO₃ in hundreds of megahertz band

Electromagnetic wave absorption properties of Ba(CoTi)_xFe_12–2xO₁₉@BiFeO₃ in hundreds of megahertz band