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微波气体放电天线开关管是雷达无馈系统的一个重要微波元件。它是随着雷达技术的发展而不断改进及完善的。早在第二次世界大战中,单一天线的脉冲雷达系统就已使用了气体放电管作为天线转换开关。气体放电管分发射机阻塞放电器(ATR)和接收机保护放电器(TR)两大类。这些器件的主要优点在于,开关动作异常迅速,具有良好的隔离度。开关时间约10~(-8)秒,隔离度约60～70dB。这不但满足了雷达从发射状态到接收状态进行转换的需要,而且在一定程度上保护了雷达接收机的混频晶体。1948年麻省理工学院幅射实验室所
Microwave gas discharge antenna switch tube radar feed-free system is an important microwave components. It is with the development of radar technology and continuous improvement and improvement. As early as in World War II, a single antenna pulse radar system has used the gas discharge tube as the antenna switch. Gas discharge tube transmitter Blocking Discharge (ATR) and receiver protection (TR) two categories. The main advantage of these devices is that the switching action is extremely rapid and has good isolation. Switching time of about 10 ~ (-8) seconds, isolation of about 60 ~ 70dB. This not only satisfies the need of the radar to convert from the transmitting state to the receiving state, but also protects the mixing crystal of the radar receiver to a certain extent. 1948 Massachusetts Institute of Technology radiation laboratory