Skip to main content
SpringerLink
Log in

Parametric Simulation and Optimization of Cold-test Properties for a 220 GHz Broadband Folded Waveguide Traveling-wave Tube

  • Published:
Journal of Infrared, Millimeter, and Terahertz Waves Aims and scope Submit manuscript

Abstract

Characterized with full-metal structure, high output power and broad bandwidth, microfabricated folded waveguide is considered as a robust slow-wave structure for millimeter wave traveling-wave tubes. In this paper, cold-test (without considering the real electron beam) properties were studied and optimized by 3D simulation on slow-wave structure, for designing a 220 GHz folded waveguide traveling-wave tube. The parametric analysis on cold-test properties, i.e., phase velocity, beam-wave interaction impedance and cold circuit attenuation, were conducted in half-period circuit with high frequency structure simulator, assisted by analytical model and equivalent circuit model. Through detailed parametric analyses, interference between specified structural parameters is found on determining beam-wave interaction impedance. A discretized matrix optimization for interaction impedance was effectively carried out to overcome the interference. A range of structural parameters with optimized interaction impedance distributions were obtained. Based on the optimized results, a broadband folded waveguide with cold pass-band of about 80 GHz, flat phase velocity dispersion and fairly high interaction impedance was designed for a 220 GHz central frequency traveling-wave tube. A three-dB bandwidth of 20.5 GHz and a maximum gain of 21.2 dB were predicted by small signal analysis for a 28 mm-long lossy circuit.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8

Similar content being viewed by others

References

  1. R. K. Parker, R. H. Abrams Jr., B. G. Danly, and B. Levush, “Vacuum electronics,”. IEEE Transactions on Microwave Theory and Techniques 50(3), 835–844 (2002).

    Article  Google Scholar 

  2. V. L. Granatstein, R. K. Parker, and C. M. Armstrong, “Scanning the technology: vacuum electronics at the dawm of twenty-first century,”. Proceedings of the IEEE 87(5), 702–716 (1999).

    Article  Google Scholar 

  3. J. H. Booske, M. C. Converse, C. L. Kory, C. T. Chevalier, D. A. Gallagher, K. E. Kreisher et al., “Accurate parametric modeling of folded waveguide circuits for millimeter-wave traveling wave tubes,”. IEEE Transactions on Electron Devices 52(5), 685–694 (2005).

    Article  Google Scholar 

  4. R. L. Ives, “Microfabrication of high-frequency vacuum electron devices,”. IEEE Transactions on Plasma Science Vol.32, Issue3, Part1, 1277–1291 (2004).

    Article  Google Scholar 

  5. G. Doher, D. Gagne, D. Gallagher, R. Moats, “Serpentine waveguide TWT,” International Electron Devices Meeting, Technical Digest, pp. 485–488 (1987).

  6. H. -J. Ha, S. -S. Jung, and G. -S. Park, “Theoretical study for folded waveguide traveling wave tube,”. International Journal of Infrared and Millimeter Waves 19(9), 1229–1245 (1998).

    Article  Google Scholar 

  7. S. Liu, “Study of propagation characteristics for folded waveguide TWT in millimeter wave,”. International Journal of Infrared and Millimeter Waves 21(4), 655–660 (2000).

    Article  Google Scholar 

  8. S. -T. Han, J. -I. Kim, and G. -S. Park, “Design of a folded waveguide traveling-wave tube,”. Microwave and Optical Technology Letters 38(2), 161–165 (2003).

    Article  Google Scholar 

  9. H. Essen, A. Wahlen, R. Sommer, W. Johannes, R. Brauns, M. Schlechtweg and A. Tessmann, “High bandwidth 220 GHz experimental radar,” Electronic Letters Vol.43, No.20, pp.1114–1116, (2007).

  10. N. Marcuvitz, “Waveguide Handbook”, Peter Peregrinus Ltd, 1986, pp.333–334, 364–365.

  11. B. N.Basu, “Electromagnetic theory and applications in beam-wave electronics”, World scientific, (1996).

  12. S. Liu, H. li, W. Wang and Y. Mo, “Introduction to microwave electronics”, National defense industry press, 1985 (in Chinese).

  13. D. M. Pozar, “Microwave engineering (second edition)”,Wiley, 1998, pp. 94–95.

  14. Ansoft HFSS online help v10.

Download references

Author information

Authors and Affiliations

  1. Institute for Microsystem Technology, Vestfold University College, Borre, 3184, Norway

    Ruilin Zheng & Xuyuan Chen

  2. Pen-Tung Sah MEMS Research Center, Xiamen University, Xiamen, 361005, China

    Ruilin Zheng & Xuyuan Chen

Authors
  1. Ruilin Zheng
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Xuyuan Chen
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Xuyuan Chen.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Zheng, R., Chen, X. Parametric Simulation and Optimization of Cold-test Properties for a 220 GHz Broadband Folded Waveguide Traveling-wave Tube. J Infrared Milli Terahz Waves 30, 945–958 (2009). https://doi.org/10.1007/s10762-009-9510-x

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10762-009-9510-x

Keywords

Search

Navigation