摘要
对比分析了几种可输出圆波导TE_(01)模激励器的仿真设计结果。结果表明,利用行波功分结构实现矩形波导TE_(10)模到4路矩形波导TE_(10)模的等幅同相功分,进而合成转换成圆波导TE_(01)模的转换过程,可在较宽的频带范围内,实现圆波导TE_(01)模的高效激励。以中心频率9.40GHz仿真设计的圆波导TE_(01)模激励器,在中心频率上的传输效率超过99.9%;在9.08~9.61GHz的频率范围内,传输效率大于99%。实验测量结果表明,所加工激励器在较宽的频带范围内,传输损耗优于-0.2dB,与仿真结果的差异主要来自于波导壁面的欧姆损耗和波同转换结构;器件工作频带内平坦特性良好,有利于开展测量工作。
The design methodologies,numerical results for TE01 circular waveguide mode transducer were reported.It is shown that,TE01 circular waveguide mode can realize high transmission efficiency in a wide band by utilizing travelling wave power divide structures,realizing TE10 rectangular waveguide mode divided into four TE10 rectangular waveguide modes,and then combining to a TE01 circular waveguide mode.The optimized transducer has a transmission efficiency of over 99.9%at 9.40 GHz,and exceeds 99.0%in the range of 9.08-9.61 GHz.Experimental results show that the transmission loss is less than-0.2 dB,which is mainly caused by waveguide ohmic loss and waveguide-coaxial adapter.However,the results also have verified the feasibility of the manufactured transducer.
作者
张强
袁成卫
陈俊
余龙舟
赵雪龙
Zhang Qiang;Yuan Chengwei;Chen Jun;Yu Longzhou;Zhao Xuelong(College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China;75836 Troops, PLA, Ouangzhou 510000, China)
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2018年第6期56-59,共4页
High Power Laser and Particle Beams
基金
国家自然科学基金项目(61401485)
