people say that this kind of feed seems to pickup less qrm as it is a shielded loop. i have tried a faraday loop myself and in comparisson with the currently used gamma match, i could find a noticable difference. in order to get the swr down to a minimum, you would have to play with the shape of the faraday loop. the faraday loop has no electrical connection with the main loop, it just inductively couples.
the faraday- or shielded loop should be placed opposite the tuning capacitor.
the gamma match i am using is easier to construct, i think the pictures are self explanatory. to tune for lowest swr, i can just adjust the clamp and slide it around on the main loop. once the right point has been established, this will remain the same for all frequencies the loop is used for.
第一段似乎主要说的是使用法拉第匹配环的优点和调整方法，因为属于屏蔽环所以qrm更小，调整形状能够调整驻波，与大环没有电器连接，此法拉弟匹配环应该放置在可调电容的对面，等等。
第二段主要说的是伽玛匹配方式，，，，，
