摘要
根据实际工程需要，对回旋行波管的输入窗和输出窗结构分别进行了理论分析，选取蓝宝石作为窗片材料，通过HFSS进行了仿真及优化。仿真结果表明，输入窗采用传统的盒型结构在92．6～100GHz频段范围内，S11小于-20dB，同时S21大于-0．08dB，传输效率达到98％以上，有效带宽达到7．4GHz。输出窗采用新型双窗片结构，并且对双窗片结构进行了理论分析。仿真结果表明，在92—101．1GHz的频段范围内，S11小于-20dB，同时S21大于-0．08dB，有效带宽达到9．1GHz，带宽比传统的单窗片结构提高了近3．4GHz。
Theoretical analysis on structures of pill-box input window and double-window output window for W-band gyro- TWT, working in TE01 mode, is conducted according to the actual engineering demand. Sapphire was chosen as the window mate- rial. Simulation and optimization were performed with HFSS. The simulation result shows that the bandwidth of both the two win- dows （input and output window） meets the demand of S11〈-20 dB and S21〉-0.08 dB, and their bandwidthes are 7.4 GHz and 9.1 GHz respectively. Compared with the conventional window, the bandwidth of the improved window increased nearly 3.4 GHz.
出处
《现代电子技术》
2013年第8期138-139,142,共3页
Modern Electronics Technique
基金
国防预研基金项目(51323010203B)
