FEKO建模问题

可以在edit里面建，很简单的
wg 卡
也可以导入你的建模

感觉这种网面结构很复杂，又是抛物面形式的。所以不太清楚具体怎么建，小编可否说的具体一点

對這個架構... 我有思考了一下。
1. 我有一些問題，漁網部分有幾個週期單元，這是關鍵之一。
2. 在 FEKO 部分，我建議可以用 Wire 來做漁網，而不是用實際的尺寸硬做，這是其他套軟體無法批敵，這部份我覺的是 FEKO的強項。
3. 在 V5.4 版有一個新的方法(periodic boundary condition)，假使漁網單元夠多，可以用此方法去粗估出你要的答案。
以上是我小小的想法。
Analysis of periodic structures in FEKO
http://www.feko.info/feko-product-info/technical/special-module-and-feature-articles/analyzing-periodic-structures
This page describes the analysis of periodic structures by way of the periodic boundary condition feature, new to FEKO Suite 5.4.
Feature introductionWith FEKO Suite 5.4 comes a new feature, namely the option to analyse infinite periodic structures. The MoM is used in the periodic analysis, employing a periodic version of the free space Green function, such that a PBC is realized. A typical application of this method is to analyse FSS structures, as will be shown in the validation results to follow.
  Capabilities
The PBC feature has the following capabilities:
Periodic boundaries in both one and two dimensions is supported.  
In the case of two dimensional periodicity, arbitrary (non-orthogonal) lattice vectors are supported.
The unit cell can include conducting surfaces as well as thin dielectric sheets. Wire segments are not supported at present.
Since the PBC method is based upon the free space Green function, it can be used together with an infinite PEC or PMC plane, but it cannot be used together with dielectric layers.
The geometry of the unit cell may intersect its boundaries (half basis functions are created on the relevant elements in the discretized model), as long as it lines up with the geometry edge on the opposite side of the unit cell.
In the case of solving a radiation problem, the periodic phase shift between cell excitations can be specified.
In the case of solving a scattering problem, the periodic phase shift follows from the incident plane wave definition and cannot be specified independently.
PBC analysis is part of the MoM kernel and can be executed sequentially or in parallel. However, it is not available in conjuction with MLFMM, SEP, VEP, PO, UTD, GO or FEM.
Periodicity in three dimensions is not supported.
These features allow the user to analyse a very large class of problems, though there are some restrictions, as noted.
  UsageIn CADFEKO, a PBC analysis is requested via the Define periodic boundary condition dialog under Model in the main menu. The dialog enables the user to:
Choose between one and two dimensional periodicity
Define lattice vector(s)
Define directional phase shifts for local excitations, if applicable
Visualize the PBC's  

哇塞
这个东西挺难 弄得 谁可以做做 给个经验阿

就是，谁做出来了发个文件出来让我们好好学习下啊

xh0898
ham119804
webhugo
这个版基本咱们仨人 占了

估计太多了，假设研究的是个口径1m的抛物面网面天线，参照上面的网面单元尺寸，可以想象单元非常非常多，初步的想法是把抛物面网分成几部分分别算，再将各部分的远场叠加，不知可不可行，但现在连最基本的模型也没搭建起来，用这么小的单元组合出(拼凑)那么大的抛物面，不知怎么做合适?

你这是在做编织结构吗?我也是在弄这个，才开始，建模都是问题。

算是编织结构，你有什么好办法么?

对于你的第二条建议，有没有什么可以参考的例子?