摘要
如图3所示，在一个很宽的频率范围内吸收性能随着材料片厚度的增厚而提高。这种损耗的百分之八十来自于磁损耗，而其余的损耗则来自于电介质损耗、空间辐射和底材损耗。通过掺入磁性材料的变化可以改变磁损耗的强度和频率特性。即，诸如磁化饱和、微粒大小、微粒形状、磁各向异性都可以被视为关键的材料特性参数被用来调整吸收体的性能。
As shown in Figure 3,absorbing performance increases with sheet thickness over a broad frequency range.More than 80 percent of this loss comes from magnetic loss with the remaining loss resulting from dielectric loss,air radiation,and substrate loss.Intensity and frequency characteristics of magnetic loss can be modified by changes to the embedded magnetic material.Material properties such as saturation magnetization,particle size,magnetic anisotropy, and particle shapes are the key parameters used to tailor the absorbing performance.
出处
《UPS应用》
2009年第5期64-64,共1页
UPS Applications
