Skip to main content
SpringerLink
Log in

Stability Analysis of a Second Harmonic Coaxial-Waveguide Gyrotron Backward-Wave Oscillator

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

Abstract

This study analyzes the stability of a Ka-band second harmonic gyrotron backward-wave oscillator (gyro-BWO) with a coaxial interaction waveguide. All of the possible competing modes in the frequency tuning range are considered. To suppress various competing modes, the downstream part of the coaxial interaction waveguide is loaded with distributed losses. Although the competing modes have different kinds of transverse field distributions, simulation results show that the losses of the outer cylinder and those of the inner cylinder serve as complementary means of suppressing the competing modes. The losses can stabilize the competing modes while having minor effects on the start-oscillation current of the operating mode. Detailed investigations were performed involving the dependence of the start-oscillation currents on the parameters of the lossy inner cylinder and the lossy outer cylinder, including the resistivity and the length of the lossy section. Moreover, under stable operating conditions, the performances of the second harmonic coaxial gyro-BWO with different sets of circuit parameters are predicted and compared.

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
Fig. 9
Fig. 10
Fig. 11
Fig. 12

Similar content being viewed by others

References

  1. V. L. Granatstein, B. Levush, B. G. Danly, and R. K. Parker, IEEE Trans. Plasma Sci. 25, 1322 (1997).

    Article  Google Scholar 

  2. J. M. Wachtel, and E. J. Wachtel, Appl. Phys. Lett. 37, 1059 (1980).

    Article  Google Scholar 

  3. S. Y. Park, V. L. Granatstein, and R. K. Parker, Int. J. Electron. 57, 1109 (1984).

    Article  Google Scholar 

  4. C. S. Kou, Phys. Plasmas 1, 3093 (1994).

    Article  Google Scholar 

  5. A. K. Ganguly and S. Ahn, Int. J. Electron. 67, 261 (1989).

    Article  Google Scholar 

  6. G. S. Nusinovich, and O. Dumbrajs, IEEE Trans. Plasma Sci. 24, 620 (1996).

    Article  Google Scholar 

  7. C. S. Kou, C. H. Chen, and T. J. Wu, Phys. Rev. E 57, 7162 (1998).

    Article  Google Scholar 

  8. A. T. Lin, Phys. Rev. A 46, R4516 (1992)..

    Article  Google Scholar 

  9. M. T. Walter, R. M. Gilgenbach, P. R. Menge, and T. A. Spencer, IEEE Trans. Plasma Sci. 22, 578 (1994).

    Article  Google Scholar 

  10. K. F. Pao, T. H. Chang, C. T. Fan, S. H. Chen, C. F. Yu, and K. R. Chu, Phys. Rev. Lett. 95, 185101 (2005).

    Article  Google Scholar 

  11. T. H. Chang, C. T. Fan, K. F. Pao, and K. R. Chu, Phys. Appl. Phys. Lett. 90, 191501 (2007).

    Article  Google Scholar 

  12. K. F. Pao, C. T. Fan, T. H. Chang, C. C. Chiu, and K. R. Chu, Phys. Plasmas 14, 093301 (2007).

    Article  Google Scholar 

  13. T. H. Chang, C. F. Yu, C. L. Hung, Y. S. Yeh, M. C. Hsiao, and Y. Y. Shin, Phys. Plasmas 15, 073105 (2008).

    Article  Google Scholar 

  14. Y. S. Yeh, T. H. Chang, and T. S. Wu, Phys. Plasmas 11, 4547 (2004).

    Article  Google Scholar 

  15. N. C. Chen, C. F. Yu, C. P. Yuan, and T. H. Chang, Appl. Phys. Lett. 94, 101501 (2009).

    Article  Google Scholar 

  16. W. He, A. D. R. Phelps, K. Ronald, C. G. Whyte, S. V. Samsonov, V. L. Bratman, and G. G. Denisov, Appl. Phys. Lett. 89, 091504 (2006).

    Article  Google Scholar 

  17. C. L. Hung, Phys. Plasmas 17, 103102 (2010).

    Article  Google Scholar 

  18. C. L. Hung, T. H. Chang, and Y. S. Yeh, Phys. Plasmas 18, 103113 (2011).

    Article  Google Scholar 

  19. K. R. Chu, H. Y. Chen, C. L. Hung, T. H. Chang, L. R. Barnett, S. H. Chen, and T. T. Yang, Phys. Rev. Lett. 81, 4760 (1998).

    Article  Google Scholar 

  20. J. P. Calame, M. Garven, B. G. Danly, B. Levush, and K. T. Nguyen, IEEE Trans. Electron Devices 49, 1469 (2002).

    Article  Google Scholar 

  21. C. L. Hung, and Y. S. Yeh, Phys. Plasmas 12, 103102 (2005).

    Article  Google Scholar 

  22. Y. S. Yeh, J. H. Cheng, L. K. Chen, C. W. Hung, C. Y. Lo, and C. W. Liao, Phys. Plasmas, 15, 023109 (2008).

    Article  Google Scholar 

  23. B. Liu, J. Feng, E. Wang, Z. Li, X. Zeng, L. Qian, and H. Wang, IEEE Trans. Plasma Sci. 39, 1665 (2011).

    Article  Google Scholar 

  24. Y. S. Yeh, C. H. Lai, Z. Q. Wu, J. N. Jhou, Y. C. Lo, S. J. Yan, J. Infrared, Millim, Terahertz Waves 33, 6 (2012).

    Article  Google Scholar 

  25. Q. S. Wang, D. B. McDermott, and N. C. Luhmann, Jr., Phys. Rev. Lett. 75, 4322 (1995).

    Article  Google Scholar 

  26. D. E. Pershing, K. T. Nguyen, J. P. Calame, B. G. Danly, B. Levush, F. N. Wood, and M. Garven, IEEE Trans. Plasmas Sci. 32, 947 (2004).

    Article  Google Scholar 

  27. K. R. Chu and A. T. Lin, IEEE Trans. Plasma Sci. 16, 90 (1988).

    Article  Google Scholar 

  28. J. P. Calame, D. K. Abe, B. Levush, and B. G. Danly, J. Appl. Phys. 89, 5618 (2001).

    Article  Google Scholar 

  29. Ansoft Corporation.

  30. M. V. Kartikeyan, E. Borie, and M. K. Thumm, IEEE Trans. Plasmas Sci. 28, 645 (2000).

    Article  Google Scholar 

Download references

Acknowledgments

The authors would like to thank the National Science Council of the Republic of China, Taiwan, for financially supporting this research under Contract No. NSC 100-2221-E-346 -010. We are grateful to the National Center for High-performance Computing for computer time and facilities.

Author information

Authors and Affiliations

  1. Department of Communication Engineering, National Penghu University of Science and Technology, Penghu, 880, Taiwan

    C. L. Hung & J. H. Hong

Authors
  1. C. L. Hung
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. J. H. Hong
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to C. L. Hung.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Hung, C.L., Hong, J.H. Stability Analysis of a Second Harmonic Coaxial-Waveguide Gyrotron Backward-Wave Oscillator. J Infrared Milli Terahz Waves 33, 1190–1202 (2012). https://doi.org/10.1007/s10762-012-9940-8

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10762-012-9940-8

Keywords

Search

Navigation