Vacuum Electronics National Key Laboratory

Beijing, China

Vacuum Electronics National Key Laboratory

Beijing, China

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Sun H.,CAS Institute of Electronics | Sun H.,Vacuum Electronics National Key Laboratory | Li H.,University of Electronic Science and Technology of China | Wang E.,CAS Institute of Electronics | And 9 more authors.
Qiangjiguang Yu Lizishu/High Power Laser and Particle Beams | Year: 2015

The design principle of a TE10□-TE01○ broad band cruciform mode converter was addressed in this paper, and the scheme of a set of W-band low loss input coupling system was presented. According to this scheme, the 3-D model was optimized and simulated by HFSS. A TE10□-TE01○ broad bandmode converter with a loss of less than 0.14 dB, a maximum VSWR of 1.388, and a band width of 10 GHz was obtained through simulation. For the whole system, a calculated loss of less than 1 dB, which was far less than that of TE10 mode in the rectangle waveguide (about 15 dB), was given. It leaded to the increase of the transmission efficiency and reduction of the energy loss. A pair of manufactured mode converters was tested in the experiment, and the loss was about 1 dB. So the loss of the whole system was equal to 3 dB, which was greatly improved compared with the loss in the rectangle waveguide. ©, 2015, Editorial Office of High Power Laser and Particle Beams. All right reserved.


Sun H.,Vacuum Electronics National Key Laboratory | Li H.,Physical Electronic Institute | Wang E.-F.,Vacuum Electronics National Key Laboratory | Zeng X.,Vacuum Electronics National Key Laboratory | And 3 more authors.
Proceedings of 2015 IEEE International Vacuum Electronics Conference, IVEC 2015 | Year: 2015

This paper presents the design of a W-band low loss TE10-TE01 mode converter, which is mainly used in the input system of W-band gyro-TWT. Based on the design, the 3-D model has been optimized and simulated in ANSOFT HFSS. A TE10-TE01 broad band mode converter with a loss of less than 0.14 dB, maximum VSWR of 1.388, and a band width of 10GHz was obtained through the simulation. Then a pair of manufactured mode converters was tested in the experiment, and the loss was about 1 dB. © 2015 IEEE.

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