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砷化镓(GaAs)对未来的雷达系统和电子战将起关键作用。由于GaAs的电子活动度高,用它做成的集成电路(IC)具有较高的输出功率和射频增益,带宽2～100千兆赫。GaAs将改变普通干扰雷达的现状,并打开通向新器件的道路。 地面普通雷达采用高功率行波管产生兆瓦级的射频脉冲。这种功率通过管线传输到天线面上的缝隙或辐射器。对典型的机载雷达来说,每个辐射器发射0.5～10瓦的功
GaAs plays a key role in the future of radar systems and electronic warfare. Due to the high electronic activity of GaAs, integrated circuits (ICs) made of it have high output power and RF gain with bandwidths of 2-100 GHz. GaAs will change the state of common jamming radars and open the way to new devices. Ordinary ground radar using high-power traveling wave tube megawatt radio frequency pulse. This power is transmitted through the pipeline to the antenna gap or radiator. For a typical airborne radar, each radiator emits 0.5-10 watts of power