搜索 - 科创

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不懂为何要这样做，变压器看起来只是起到一个馈电的作用，没有起到巴伦的作用，两个MMIC是同相工作的。就算把阻抗变换到25欧然后分路，也只能提高很少一点动态性能。

后续车了几个巴伦的套管，因为目前的技术就只敢操作塑料件，加工金属件怕得很。加工塑料的时候手都在发抖，车速放得很慢，戴了护目镜，离车床远远的。在打草稿，螺距螺纹多深，都自己算过一次，不懂就百度学习。

那些“高频巴伦”，掺杂了磁性材料，主要靠磁性吸波，顺便也可以起到左右隔离的作用。可以一定程度抵消失配带来的影响，减少低频失配导致的R0偏离理想值太远。我在做6GHz的等臂电桥。在PCB板上做。

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