13.56MHz RFID Tag antenna仿真问题

小妹初学利用CST仿真13.56MHz的RFID
首先已画出几圈antenna coils
再利用”discrete port with lumped element”
设定50歐姆阻抗与电容值
单位选用mm,MHz
使用CST MICROWAVE STUDIO里面的T!去跑
却出现因为设定问题仿真时间very long的警示
困惑中....
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(CST EM?CST PCB?)不对,请给予初学者一些建议吧

 

What is your simulation frequency range? Very narrow frequency range will lead to very long simulation time (excitation time).
What is the minimum mesh line step in your model? Too small minimum mesh line step will cause very long simulation time.
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
所以我设定扫频10MHz15MHz
网格切如附图
不清楚为啥仍是需要非常久的计算时间?
请问我哪里设定的不适当?

 

The frequency range is too narrow! The excitation time would last ages...
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.
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.
If you prefer the narrow frequency range simulation, set it from 0 to 30MHz if you can wait.

 

Thank you very very much!!!
I'll try it

 

频率范围越大，仿真速度越快点

申明：网友回复良莠不齐，仅供参考。如需专业解答，请学习易迪拓培训专家讲授的CST视频培训教程。