scholarly journals HIGH-POWER WIDEBAND ELLIPTICAL-GROOVED OVER-MODE CIRCULAR WAVEGUIDE POLARIZER

2020 ◽  
Vol 92 ◽  
pp. 47-54
Author(s):  
Gexing Kong ◽  
Xianqiang Li ◽  
Qingfeng Wang ◽  
Jian-Qiong Zhang
2014 ◽  
Vol 26 (6) ◽  
pp. 63040 ◽  
Author(s):  
孙钧 Sun Jun ◽  
胡咏梅 Hu Yongmei ◽  
张立刚 Zhang Ligang ◽  
滕雁 Teng Yan ◽  
宋志敏 Song Zhimin ◽  
...  

2017 ◽  
Vol 27 (12) ◽  
pp. 1095-1097 ◽  
Author(s):  
Xiao-Meng Li ◽  
Jian-Qiong Zhang ◽  
Xiang-Qiang Li ◽  
Qing-Xiang Liu

1985 ◽  
Vol 56 (5) ◽  
pp. 764-765 ◽  
Author(s):  
T. Saito ◽  
Y. Kiwamoto ◽  
T. Kariya ◽  
S. Miyoshi

Author(s):  
Sun-Ik Lee ◽  
Joong-Pyo Kim ◽  
Won-Gyu Lim ◽  
Sang-Goo Kim ◽  
Pil-Yong Lee ◽  
...  

2014 ◽  
Vol 26 (9) ◽  
pp. 93001
Author(s):  
张健穹 Zhang Jianqiong ◽  
刘庆想 Liu Qingxiang ◽  
李相强 Li Xiangqiang ◽  
王邦继 Wang Bangji

2021 ◽  
Vol 42 (4) ◽  
pp. 380-390
Author(s):  
Daniel Haas ◽  
Manfred Thumm

AbstractThe HE11 hybrid mode, propagating in an overmoded corrugated circular waveguide, is widely used for low loss transmission of high-power microwaves. Due to the inherent broadband frequency behaviour, this will be also essential for future broadband high-power radar applications, like space debris observation in low earth orbit (LEO). A promising amplifier concept for such radar sensors is a helical gyro-TWT. However, since the HE11 hybrid mode is not suitable for electron-beam-wave interaction in this kind of vacuum electron device, an additional mode converter is required. The present paper addresses the design procedure of a broadband high-power mode converter, designed for a helical gyro-TWT intended for future broadband high-power radar applications in the W-band. The interaction mode of the helical gyro-TWT under consideration can be easily transferred to the circular waveguide TE11 mode. Therefore, a TE11 ↦ HE11 mode converter is addressed here. The design procedure is based on a scattering matrix formalism and leads to a high HE11 mode content of ≥98.6% within the considered frequency range from 92 GHz to 100 GHz. Inside this frequency band, the mode content is even better and reaches ≈ 99.7% at ≈95 GHz. This allows broadband frequency operation of a helical gyro-TWT and is suitable for broadband high-power radar applications.


2010 ◽  
Vol 50 (2) ◽  
pp. 181-189 ◽  
Author(s):  
Ž. Kancleris ◽  
G. Šlekas ◽  
V. Tamošiūnas ◽  
M. Tamošiūnienė ◽  
M. Dagys

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