A Modified Wavelet-Meshless Method for Lossy Magnetic Dielectrics at Microwave Frequencies
A Modified Wavelet-Meshless Method for Lossy Magnetic Dielectrics at Microwave Frequencies
复制标题
微波频率下有损磁电介质的改进小波无网格方法
DOI：
10.1109/tmag.2012.2228171
复制
发表时间：
2013
影响因子：
2.1
通讯作者：
M. Movahhedi
中科院分区：
文献类型：
--
作者：
A. Afsari;M. Movahhedi
在这项工作中，研究了在无网格方法中使用现有的多分辨率分析（MRA）来分析一些在微波频率下磁导率和介电常数复杂的电介质。可以看出，现有的MRA在用于上述介电模拟时存在一些缺点和无意义的方面。一般来说，这种类型的 MRA 属于其他研究领域，例如图像处理。本文的目的是详细说明这些方面并提出一些修改方案，以克服现有 MRA 的缺点，从而达到在高频电介质领域使用小波的严格方法。我们选择了无网格方法，它是最新、最强大的现有数值方法之一，作为使用改进的 MRA 的领域，称为计算 MRA (CMRA)。在无网格方法中使用 CMRA 不仅克服了大部分缺点，而且与大多数其他数值方法相比更快、更准确。
In this work, the use of existing multiresolution analysis (MRA) in meshless method is studied to analyze some dielectrics for which the permeability and permittivity are complex at microwave frequencies. It will be shown that the existing MRA has some disadvantages and non meaningful aspects when is used in above dielectric simulation. In general, this type of MRA belongs to other areas of study such as image processing. Specifying these aspects and proposing some modifications to overcome the disadvantages of existing MRA for reaching a strict method of using wavelets in area of high frequency dielectrics, is the aim of this paper. We have selected the meshless method that is one of the newest and most powerful existing numerical methods as an area of using the modified MRA called computational MRA (CMRA). The use of CMRA in meshless methods, not only leaves most of the disadvantages, but also is faster and more accurate in comparison with the most other numerical methods.