Since the wire 7C set at a fixed reference electric potential is placed between the input wire 7A and the output wire 7B, however, it is possible to prevent the high frequency characteristic from deteriorating due to a mutual induction effect between {HEAD ~ the input wire} 7A and {TAIL ~ the output wire} 7B 
Since the wire 7C set at a fixed reference electric potential is placed between the input wire 7A and the output wire 7B , however , it is possible to prevent the high frequency characteristic from deteriorating due to a mutual induction effect between { HEAD ~ the input wire } 7A and { TAIL ~ the output wire } 7B
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