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Analytical Exploration of Folded Waveguide Circuit Design for High-power Traveling-wave Tube Amplifier

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Abstract

In this paper, we analyze the design of the folded waveguide slow-wave circuit for traveling-wave tube (TWT) amplifiers. On the basis of physical analyses, an improved physical-based design method that is especially suitable for high-power devices is developed. The proposed method overcomes the difficulties resulting from increased operating voltages and requirements for higher interaction impedance in high-power designs. It enables balancing of dispersion and interaction impedance, which is a flexible approach in addressing operational problems. Furthermore, the essential relationship between the proposed and the existing methods are revealed. A Ka-band folded waveguide TWT amplifier is designed and examined, thereby confirming that the new design method is effective and reliable.

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Acknowledgements

This research was supported by the National Natural Science Foundation of China (Grant No. 60401005).

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Authors and Affiliations

  1. National Key Laboratory of High Power Vacuum Electronics , School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu, 610054, Sichuan, China

    Changqing Zhang & Yubin Gong

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  1. Changqing Zhang
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  2. Yubin Gong
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Correspondence to Changqing Zhang.

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Zhang, C., Gong, Y. Analytical Exploration of Folded Waveguide Circuit Design for High-power Traveling-wave Tube Amplifier. J Infrared Milli Terahz Waves 32, 407–417 (2011). https://doi.org/10.1007/s10762-011-9781-x

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  • DOI: https://doi.org/10.1007/s10762-011-9781-x

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