Secondly, the structures of various multicouplers and their matching networks are introduced and discussed, and the design period of broadband matching network in multicoupler is presented in brief.
然后，本文对多种多路耦合器的结构方案进行了分析和比较，并讨论了匹配网络的设计方法，其中简要讲述了宽带匹配网络的优化设计过程。
![L networks for narrowband matching a source or load impedance Z to a transmission line with characteristic impedance Z0. X and B may each be either positive (inductor) or negative (capacitor). If Z/Z0 is inside the 1+jx circle on the Smith chart (i.e. if Re(Z/Z0)>1), network (a) can be used; otherwise network (b) can be used.[3]](/uploads/202501/26/LMatchingNetworks.svg0740.png)
