一种雷达双路波导交连的设计

双路波导交连主要是将两路矩形波导变换成两路同轴波导再变换回两路矩形波导。文中主要论述了某双波段相控阵雷达波导交连的关键技术及实现方法。借助微波电磁仿真软件HFSS，对Ku波段和C波段双路交连进行了仿真设计，理论上拓宽了双路交连的工作带宽。通过热设计仿真手段，得到交连内部的温度场、最高温度及其所在位置，验证了交连工作过程中不会出现高温打火失效情况。对试制样机进行了实验测试，结果表明电性能满足设计要求。

Design of a Radar Dual Waveguide Rotary Joint

Dual waveguide rotary joint can convert dual rectangular waveguide to dual coaxial waveguide and then convert dual coaxial waveguide to dual rectangular waveguide. This paper mainly discusses the key techniques and the implementation method of the waveguide rotary joint in a dual band phased array radar. The microwave electromagnetic simulation software HFSS is employed in the design of the Ku-band and C-band rotary joints, which theoretically broadens the bandwith of the joints. The temperature field, the highest temperature and its position in the rotary joint are obtained by thermal simulation, which verifies that the failure of the joint due to high temperature ignition will not occur during operation. A prototype is manufactured and tested. Results show that the electrical performance meets the design requirements.