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Design of Tip Loss Profile on Support Rod for a Helix TWT

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Abstract

This paper describes the design of tip loss profile on support rod for a high gain, high efficiency helix TWT. The tip loss profile at sever ends for the input and the output section of the helix slow wave structure has been designed for return loss at severs ends better than -20 dB. The experimental results have been carried out in the input and the output section of the helix assemblies for the high gain helix TWT to find the return loss in the region of carbon coated tip loss on the support rods. The experimental result has been compared with the simulated performance for the return loss at the sever ends. The design of tip loss profile on the support rod for helix TWT has been carried out in real situation using Ansoft HFSS. A good agreement has been found in the simulated and experimental results.

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Acknowledgments

This work was carried out under a sponsored project from ISRO, Bangalore. The authors are thankful to the Director, CEERI, Pilani and Dr. SN Joshi, Dr. RK Sharma, Microwave Tubes Area. The authors are also thankful to Dr. S Ghosh, BEL, Bangalore for all their support and guidance and all other project team members for their support.

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Authors and Affiliations

  1. Microwave Tubes Area, Central Electronics Engineering Research Institute/ Council of Scientific and Industrial Research (CSIR), Pilani, 333031, Rajasthan, India

    Mukesh Kumar Alaria, A. K. Sinha & V. Srivastava

Authors
  1. Mukesh Kumar Alaria
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  2. A. K. Sinha
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  3. V. Srivastava
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Correspondence to Mukesh Kumar Alaria.

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Alaria, M.K., Sinha, A.K. & Srivastava, V. Design of Tip Loss Profile on Support Rod for a Helix TWT. J Infrared Milli Terahz Waves 30, 651–656 (2009). https://doi.org/10.1007/s10762-009-9502-x

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  • DOI: https://doi.org/10.1007/s10762-009-9502-x

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