feko中导线屏蔽层的建立问题

大家都用过feko吧，有没有人在里面分析过传输线的耦合干扰问题。小弟最近在做这个，想给导线加上屏蔽层，但是feko里面貌似只能加管状的屏蔽层，有没有那位大侠知道编制屏蔽层在feko里面怎么建立，或者说怎么等效，给一点小小的建议也好，谢谢啦！
 

是不是可以加 coating 的方式，你可以试一下

学习lz能否把模型发上来?

目前
1. 實際架構硬搞。
2. Cable 有限制 (CA Card) 。
3. Tr-Line 有限制(TL Card)。
18 Calculating field coupling into a shielded cable
Keywords: cable modelling, cable analysis, shielded cable, coupling, EMC
The coupling from a monopole antenna into a nearby shielded cable that follows an
arbitrary path near a ground plane is calculated from 1 MHz to 35 MHz in this example.
The cable analysis option in FEKO is used for the analysis. This method solves the model without the cable first, and then calculates the coupling into the cable using the transfer impedance of the cable. The same problem could be modelled by building a full MOM
model of the cable but that would be much more resource intensive. The cable analysis
solution also allows the use of a database of measured cable properties (integrated into FEKO).
The geometry shown in Figure 18-1 consists of a driven monopole antenna and a section of RG58 shielded cable over an infinite ground plane. The RG58 cable is terminated with 50 Ω loads at both ends. Figure 18-1 shows the geometry of this model.
CA Card：
This card is used to define a section of a shielded cable which is used for irradiation (i.e. computing induced currents and voltages at the cable terminals) due to external sources.
Transmission line theory is applied, i.e. no need to discretise the cable as with the MoM. A section is defined as a straight part of a cable (one cable can consist of multiple sections).
Cable type: This specifies the type of cable. There are two possibilities: User defined cable or a pre-defined cable from the internal FEKO cable database:
If User defined cable is selected in the drop-down list, then the user has to enter all the cable properties in the Cable properties section which will then be enabled. The units of the individual parameters are included in the description. Note that the Outer radius of cable shield will be scaled by any active SF card. Also keep in mind that most of these parameters may depend on the frequency and thus one might use variables or expressions.
If a pre-defined cable type is selected from the drop-down list, then the section containing the cable properties will be disabled, and all required parameters will be retrieved automatically from an internal FEKO cable database. There are several commonly found shielded cable types (up to now all coaxial cables) included.

又学习了 很多还有这个选项