面板的開孔大小,除了與thermal的開孔率有關之外,孔的大小也跟你要阻擋的EMI頻率波長相關,...
[Reference]
https://wenku.baidu.com/view/360c7433ce2f0066f53322fc.html?_wkts_=1678515490902
| Frequency | 波長(meter) | div 20(mm) | |
| 100k | 100000 | 3000.00 | 1500000.00 |
| 100M | 100000000 | 3.00 | 1500.00 |
| 150M | 150000000 | 2.00 | 1000.00 |
| 400M | 400000000 | 0.75 | 375.00 |
| 3.125G | 3125000000 | 0.10 | 48.00 |
| 10.3125G | 10312900000 | 0.03 | 14.54 |
| 25.6G | 25600000000 | 0.01 | 5.86 |
| 56G | 56000000000 | 0.01 | 2.68 |
| 53.1G | 53100000000 | 0.01 | 2.82 |
Example: 機構風孔直徑,為2.6mm的前提下可以阻擋5xG的EMI波長...
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