基于同轴波导的1分16功分器的设计与实验  

Design and experiment of 1∶16 power divider model based on coaxial waveguide

作　　者：杨梓晗 张军[2] 张强[1] 周科霖 冶玲 赵立山 Yang Zihan;Zhang Jun;Zhang Qiang;Zhou Kelin;Ye ling;Zhao Lishan(College of Advanced Interdisciplinary Studies,National University of Defense Technology,Changsha 410073,China;College of Sciences,National University of Defense Technology,Changsha 410073,China)

机构地区：[1]国防科技大学前沿交叉学科学院,长沙410073 [2]国防科技大学理学院,长沙410073

出　　处：《强激光与粒子束》2023年第3期44-49,共6页High Power Laser and Particle Beams

基　　金：国防科技大学前沿交叉学科学院重大基础自主研究项目。

摘　　要：针对高功率固态源多路功率分配技术的需要,设计并研究了一种基于同轴波导的多路功率分配器件。通过分析同轴波导传输特性与阻抗匹配理论,利用电磁仿真软件设计了一种S波段1分16功分器模型,并加工出实物进行实验测试。实验结果表明:该功分器在2.28~2.86 GHz,相对带宽约23%频率范围内,输入端反射系数S11≤-15 dB;在2.37~2.57 GHz,相对带宽约8.1%频率范围内,输入端反射系数S11≤-20 dB;输出幅度不平衡度±0.1 dB,相位不平衡度±5°。该功分器满足输出幅度与相位一致性要求,可应用于S波段百瓦级连续波功率分配。To meet the needs of multi-way power distribution applied to high-power solid-state sources,a multiway power distribution device based on coaxial waveguide is designed and studied.By analyzing the transmission characteristics of coaxial waveguides and by applying the theory of impedance matching,an S-band 1∶16 power divider is designed by electromagnetic simulation software.Moreover,the device is machined for testing.Experimental results show that the reflection coefficient S11 of the power divider is less than-15 dB in the range of2.28 GHz to 2.86 GHz(the relative bandwidth is 23%).In the range of 2.37 GHz to 2.57 GHz(the relative bandwidth is 8.1%),the reflection coefficient S11 of the input port is less than-20 dB,with the amplitude imbalance±0.1 dB and phase imbalance±5°at the output ports.To sum up,the power divider meets the amplitude and phase consistency requirements at output ports and can be applied to S-band hundred-watt continuous wave power distribution.

关 键 词：功分器 合路器 连续波 高功率微波 同轴波导 

分 类 号：TN81[电子电信—信息与通信工程]