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现代雷达技术的发展给天线罩提出了更高的要求.为了确保天线罩的电性能,必须测试天线罩的电厚度,即测试微波信号通过天线罩壁后所引起的“插入相位延迟”(IPD).因此,凡是测量微波相位的电路都可用来测量微波电厚度.过去对天线罩电厚度的测量不是采用单喇叭干涉仪,就是采用一般的双通道相位电桥.这两种方法都是比较经典的测量方法,技术上比较成熟,但它们都离不开精密的微波移相器和机械伺服系统.随着微波测量技术的发展,近来出现了能对
In order to ensure the electrical performance of the radome, the electrical thickness of the radome must be tested, that is, the “insertion phase delay” caused by the test microwave signal passing through the radome wall. (IPD). Therefore, any circuit that measures the phase of the microwave can be used to measure the microwave electrical thickness. In the past, the electrical thickness of the radome was measured using either a single-horn interferometer or a conventional dual-phase phase bridge Is a more classical measurement method, technically more mature, but they are inseparable from the sophisticated microwave phase shifter and mechanical servo system.With the development of microwave measurement technology, the recent emergence of the right