brief introduction： A device that transmits power between systems. In a microwave system, it is often necessary to divide the microwave power into several channels in proportion, which is the problem of power distribution. The components that realize this function are called power distribution components, namely couplers, which mainly include directional couplers, power distributors and various microwave branching devices. These components are usually linear multi-port reciprocity networks. In machinery, the device

30dB directional coupler

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