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The Study of a Millimeter to Submillimeter Wave Multiband High-Power Broadband Window

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Abstract

The theory of multilayer microwave window is investigated and applied to design a broadband high-power output window for a Q-band sheet beam traveling wave tube (SBTWT). The multilayer window consists of a c-axis sapphire disc (the geometry axis parallel to optical axis) in the middle and two identical matching quartz discs tightly attached on both sides. It presents a good multiband wideband and high-power performance from millimeter wave to terahertz range. The thermal property is analyzed and shows a more than 60 kW CW operating capability can be reached. The window is manufactured and cold tested shows a −17 dB reflection bandwidth over 15 GHz (34%). The theory analysis, simulation, and cold test present a good consistency.

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Acknowledgement

This work was supported by National Natural Science Foundation of China under grant No.61671129.

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Authors and Affiliations

  1. University of Electronic Science and Technology of China, Chengdu, China

    Jianxun Wang, Xuxun Ren, Qizhi Tian, Liya Yang, Yelei Yao & Yong Luo

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  1. Jianxun Wang
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  2. Xuxun Ren
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  3. Qizhi Tian
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  4. Liya Yang
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  5. Yelei Yao
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  6. Yong Luo
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Correspondence to Jianxun Wang.

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Wang, J., Ren, X., Tian, Q. et al. The Study of a Millimeter to Submillimeter Wave Multiband High-Power Broadband Window. J Infrared Milli Terahz Waves 38, 717–726 (2017). https://doi.org/10.1007/s10762-017-0373-2

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  • DOI: https://doi.org/10.1007/s10762-017-0373-2

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