When the conductance of sound radiation for IDT is equal to the output conductance for the matching network, the reflection loss and transmission loss can be reduced. 叉指换能器的声辐射电导等于匹配网络输出端电导时，可以减小反射损耗和传输损耗。
Loading the antennae with matching networks will not only decrease the VSWR at the ports of the receivers, but also reduce the influence of the mutual coupling. 加载匹配网络不但能降低接收机端口的驻波比，还能有效地减弱天线之间互耦的影响，改善系统性能。
