Microwave phase discriminator (MPD) is used to translate the phase information to amplitude information which easy to be processed by the theory of phase interference.
微波鉴相器建立在相位干涉的原理之上，通过相位干涉把相位信息转化成便于处理的幅度信息。
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LNA, orthogonal network, microwave phase discriminator, video amplifier are designed for broadband application. Reliability, circuit process, and structure are de-signed.