The introduction of the 0 ° transmission line branches makes it possible that the second new hybrid ring be used as a mixer of two signals with-90 °, 0 °, 90 ° or 180 ° phase difference. The bandwidth is enhanced by 38% in the in-phase operation. 通过在电桥中引入0°枝节,使第2种电桥可以对具有0°,90°,180°和270°相差的两个信号进行同相或反相混合,同相输出带宽增加了38%。