Ga ions-tailored magnetic-dielectric properties of Mg–Cd composites for high-frequency, miniature and wideband antennas
作者: Gongwen GanDainan ZhangJie LiGang WangXin HuangYiheng RaoYan YangXueying WangHuaiwu ZhangRay T. Chen
作者单位: 1State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, China
2Microelectronic Research Center, Department of Electrical and Computer Engineering, University of Texas at Austin, Austin, TX, 78758, USA
刊名: Ceramics International, 2020, Vol.46 (6), pp.8398-8404
来源数据库: Elsevier Journal
DOI: 10.1016/j.ceramint.2019.12.073
关键词: Ga substitutionMg–Cd compositesMiniaturizationHigh radiation efficiency
原始语种摘要: Abstract(#br)Mg ferrites are essential to stabilize the spinel structure of magnetic-dielectric composites. This study investigates the effect of Ga ions on the magnetic and dielectric properties and low-loss characteristics of Mg–Cd composites sintered at low temperature with the addition of 2.5 wt% Bi 2 O 3 . The variation in the Ga substitution of Fe at the octahedral site, with x increasing from 0.00 to 0.18 (Mg 0.8 Cd 0.2 Fe 2-x Ga x O 4 ), increases magnetization, which plays the key role in determining the permeability. The real part of the permeability ( μ ′) of the Ga-substituted ferrites was reported to increase monotonically from 10 H/m to 56 H/m. Meanwhile, the real part of the permittivity ( ε ′) was optimized by the Ga ions. Consequently, relatively matching impedance factor...
全文获取路径: Elsevier  (合作)
影响因子:1.789 (2012)

  • tailored 简明的
  • miniature 小型的
  • wideband 宽波段
  • dielectric 电介质
  • composites 菊科植物
  • magnetic 磁的
  • properties 道具
  • frequency 频率