一种非常普通的设计方法提供了宽频带的渐变形 TEM 线对称定向耦合器。该方法得出等波动耦合或假定希望预置不等波动耦合作为频率的函数。3dB 电桥的实验数据表明了在2.5到1.8GHz 的设计带宽内,有近似于理论的性能和相当好的隔离度。 A very common design approach provides a broadband, tapered TEM line-symmetric directional coupler. The method leads to isokinetic coupling or the assumption that it is desirable to have unequal fluctuation coupling as a function of frequency. The experimental data of the 3dB bridge shows that within the design bandwidth of 2.5 to 1.8 GHz, there is approximate theoretical performance and reasonably good isolation.