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如下图标注线这里要求从RF座子到FB1段的走线满足两个条件，（1）控制阻抗50欧姆，（2）具有足够的载流能力，问题点：我们现在是四层板，这段走线参考L2层控制阻抗做出线宽0.1-0.15mm之间，但是我们平均电流300-400mA，对于过电流的话来说，这个线宽偏细，理论电流只能100mA左右，请问贵司这里是怎么处理的？
