平行双缝型波导缝隙阵列天线的导纳分析

Conductance of Parallel double-slotted waveguide array antennas

平面波导缝隙阵列天线以其体积小、重量轻在飞行器雷达天线上获得广泛应用 ,但是传统的单缝型波导缝隙阵列天线的缺点是频带较窄 .以双缝代替单个缝隙作为辐射单元在一定范围内解决了这个问题 .提出了对双缝的导纳研究方法 ,得出双缝的频率特性优于单缝的重要结论 .实验证明了该方法的有效性 。

Because of being small in size and light in weight, the plane waveguide slotted array antennas have been widely used in radar antenna. However, the bandwidth of traditional single slot waveguide slot antenna is not wide. The problem can be solved by replacing the single slot with the double-slot as the radiation cell. The method is presented for study on the conductance of double slot. This research provides a new approach for widepand planar waveguide slot array. The experiment conducted on the array antennas demonstrates the method is effective.