[已解决]有关13.56MHz RFID Tag antenna仿真

小妹初学利用CST仿真13.56MHz的RFID SJD@&m%?[  
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首先已画出几圈antenna coils U*90m~)  
再利用”discrete port with lumped element” zvABU+{jD  
设定50歐姆阻抗与电容值 %X#zj"  
单位选用mm,MHz N0hE4t  
使用CST MICROWAVE STUDIO里面的T!去跑 2,ECYie^  
却出现因为设定问题仿真时间very long的警示 y#}cC+;   
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困惑中.... f0Bto/,>~  
请问各位前辈是不是哪里的设定不适当,或者选定的仿真环境 .. Y5fLmPza  
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What is your simulation frequency range? Very narrow frequency range will lead to very long simulation time (excitation time). ,K^4fL$C;3  
What is the minimum mesh line step in your model? Too small minimum mesh line step will cause very long simulation time. Vx @|O%  
And what is the total meshcells of the model? Too many meshcells numbers (high mesh density) will cost very long calculation time.

因为是13.56MHz的RFID Tag +u'I0>)S  
所以我设定扫频10MHz~15MHz |Oag,o"  
网格切如附图 iRi
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不清楚为啥仍是需要非常久的计算时间? EVQ0l@K  
请问我哪里设定的不适当? xmGk*W)P  
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图片:112.JPG

The frequency range is toooooo narrow! The excitation time would last ages... f3WSa&e
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I'll suggest you to simulate from 0 to 1GHz range (include AC can half the simulation time!). When you check the S parameter, set up the axis from 10 to 15MHz. &d`^E6#  
If the above simulation time is acceptable, then re-launch the project and apply the adaptive mesh refinement, check what the minimum mesh step and total meshcells are after optimization. You may need to set up the space of boundary if you want to observe the radiation properties. TF
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If you prefer the narrow frequency range simulation, set it from 0 to 30MHz if you can wait.

Thank you very very much!!! =WRO\lgv.  
I'll try it

频率范围越大，仿真速度越快点~~~

易迪拓培训推出了一套培训课程 Q:pzL "bT  
专门讲解13.56MHz天线及其匹配电路的设计， rAM*\=  
以及如何使用CST、HFSS等软件仿真分析13.56MHz天线。 &;Ed*OJ  
楼主可以看一下， Yg[ v/[]  
网址： edatop.com/peixun/antenna/116.html

不错，学习了

Tag用50欧姆？从出发点你就错了

RFID天线建议使用CST的F求解器 时域不太适合