13.56MHz RFID Tag antenna仿真問題
小妹初學(xué)利用CST仿真13.56MHz的RFID
首先已畫出幾圈antenna coils
再利用”discrete port with lumped element”
設(shè)定50歐姆阻抗與電容值
單位選用mm,MHz
使用CST MICROWAVE STUDIO里面的T!去跑
卻出現(xiàn)因?yàn)樵O(shè)定問題仿真時(shí)間very long的警示
困惑中....
請(qǐng)問各位前輩是不是哪里的設(shè)定不適當(dāng),或者選定的仿真環(huán)境(CST EM?CST PCB?)不對(duì),請(qǐng)給予初學(xué)者一些建議吧
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?yàn)槭?3.56MHz的RFID Tag
所以我設(shè)定掃頻10MHz15MHz
網(wǎng)格切如附圖
不清楚為啥仍是需要非常久的計(jì)算時(shí)間?
請(qǐng)問我哪里設(shè)定的不適當(dāng)?
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
頻率范圍越大，仿真速度越快點(diǎn)
