Low loss Co2Z (Ba3Co2Fe24O41)–glass composite for gigahertz antenna application
Low loss Co2Z (Ba3Co2Fe24O41)–glass composite for gigahertz antenna application
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DOI：
10.1063/1.3563056
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发表时间：
2011-04
影响因子：
3.2
通讯作者：
Jaejin Lee;Yang-Ki Hong;S. Bae;J. Jalli;G. Abo;Jihoon Park;W. Seong;Sang-Hoon Park;Won-Ki Ahn-Won-K
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文献类型：
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作者：
Jaejin Lee;Yang-Ki Hong;S. Bae;J. Jalli;G. Abo;Jihoon Park;W. Seong;Sang-Hoon Park;Won-Ki Ahn-Won-K
报道了在1-3 GHz频率范围内，Co2Z(Ba3Co2Fe24O41)-玻璃复合材料的低磁和介电损耗。将Co2Z铁氧体粉末与硼硅酸盐玻璃混合，在950℃下烧成40h，制得Co2Z-玻璃复合材料，当玻璃含量从0增加到4wt.%时，Co2Z-玻璃复合材料的磁导率实部从2.29略降至1.96，但磁损耗下降不到0.02。介电常数实部在0wt.%时为7.29，在4wt%时为7.28，在2.4 GHz时介电损耗小于0.01。在2.35 GHz频率下，Co2Z-玻璃复合芯片天线的3D峰值增益为3.32dBI。这些结果表明，Co2Z-玻璃复合材料是一种用于千兆赫兹天线的支撑磁介质材料。
Low magnetic and dielectric loss Co2Z (Ba3Co2Fe24O41)–glass composite in the frequency range of 1–3 GHz is reported. Co2Z–glass composite was prepared by firing a mixture of 40 h shake-milled Co2Z hexaferrite powder and borosilicate glass at 950 °C for 1 h. The real part of permeability decreased slightly from 2.29 to 1.96 at 2.4 GHz as the glass content increased from 0 to 4 wt. %, but magnetic loss decreased less than 0.02. On the other hand, the real part of permittivity was 7.29 at 0 wt. % and 7.28 at 4 wt. % glass and dielectric loss was less than 0.01 at 2.4 GHz. The 3D peak gain of Co2Z–glass composite chip antenna was measured to be 3.32 dBi at 2.35 GHz. These results imply that the Co2Z–glass composite is an underpinning magnetodielectric material for gigahertz antenna applications.