本文阐述直接连接的镜像波导三分贝定向耦合器的设计和估算。这种耦合器用作毫米波集成电路的元件具有几个有用的特点,例如宽频带,耦合度变化平稳和紧凑。如果直接连接的镜像耦合器的尺寸取得合适和h值近似最佳,那么它的频带宽度可达到约28％,同时,耦合度为3±0.25分贝。另外,本文还给出了买验验证,因此可以确信,对本文提出的直接连接的耦合器只要合理选择锥削段,它是实用的,即使在可能激励高阶模的频率上也是如此。 This article describes the design and estimation of a directly connected mirror waveguide three decibel directional coupler. The use of such a coupler as a component of a millimeter-wave integrated circuit has several useful features, such as broadband, smooth and compact coupling variations. If the size of the directly attached mirror coupler is approximately the best size and h value, its bandwidth can be up to about 28%, while the coupling can be 3 ± 0.25 dB. In addition, the article also gives the buy test verification, so it is believed that it is practical for the direct-coupled coupler proposed in this paper to choose the cone segment reasonably, even at frequencies that may excite the higher-order modes.