实时相位校准实现空间功率合成

Spatial Power-combining System Based on Real Time Phase Calibration Technique

介绍了自由空间功率合成技术基本原理和主要技术,重点分析了X波段功率合成的难点以及影响合成效率的主要因素,并对合成单元数量及各单元相位偏差对功率合成的影响进行了仿真。在此基础上,提出一种基于实时相位校准技术的X波段连续波功率合成的方案。采用空间辐射功率的比对测试方法,对自由空间功率合成效率、合成功率进行了测试,并给出测试结果,其最大合成效率达到90%以上。

The paper introduces the spatial power-combining technique, analyzes the main factors affecting the X hand combined efficiency, and gives the simulation result. Finally the paper presents a preliminary system constitution of an X hand CW transmitting system using the spatial power-combining technique. The combined eflqeiency is tested with a comparison test method. The result shows that the combined efficiency can reach more than 90% for the transmitting system.