2008-01-10
Analysis of Output Power Delay in Coaxial Vircator
By
Progress In Electromagnetics Research B, Vol. 4, 1-12, 2008
Abstract
In this paper, a virtual cathode oscillator (VCO) is simulated based on FDTD algorithm. The geometrical structure is coaxial. Electromagnetic fields and current graphs are calculated. For the first time it has been shown that the delay between input pulse and output microwave signal originate from the waveguide transition delay time and the virtual cathode generation loop delay time.
Citation
Gholamreza Moradi, Ayaz Ghorbani, M. Rahdan, and H. Khadem, "Analysis of Output Power Delay in Coaxial Vircator," Progress In Electromagnetics Research B, Vol. 4, 1-12, 2008.
doi:10.2528/PIERB07122501
References

1. Carron, N. J., "Fields of particles and beams exiting a conductor," Progress In Electromagnetics Research, Vol. 28, 147-183, 2000.
doi:10.2528/PIER99080102        Google Scholar

2. Li, Z. and J. Cui, "Sandwich-structure waveguides for very high-power generation and transmission using left-handed materials," Progress In Electromagnetics Research, Vol. 69, 101-116, 2007.
doi:10.2528/PIER06121001        Google Scholar

3. Benford, J., J. A. Swegle, and E. Schamiloglu, High Power Microwaves, 2nd Ed., Taylor & Francis, 2007.

4. Zherlitsyn, A. G., "Microwave generation by triode with coaxial-type virtual cathode," Pis’ma Zh. Tekh. Fiz., Vol. 16, No. 22, 78-80, 1990.        Google Scholar

5. Jiang, W., K. Woolverton, J. Dickens, and M. Kristiansen, "High power microwave generation by a coaxial virtual cathode oscillator," IEEE Trans. Plasma Sci., Vol. 27, No. 15, 1538-1542, 1999.
doi:10.1109/27.799836        Google Scholar

6. Wang, Y. J., W. J. Koh, C. K. Lee, and K. Y. See, "Electromagnetic coupling analysis of transient signal through slots or apertures perforated in a shielding metallic enclosure using FDTD methodology," Progress In Electromagnetics Research, Vol. 36, 247-264, 2002.
doi:10.2528/PIER02021701        Google Scholar

7. Idemen, M., "Derivation of the Lorentz transformations from Maxwell equations," Journal of Electromagnetic Waves and Applications, Vol. 19, 451, 2005.
doi:10.1163/1569393053303884        Google Scholar

8. Jiang, W., K. Masugata, and K. Yatsui, "Mechanism of microwave generation by virtual cathode oscillation," Phys. Plasmas, Vol. 2, No. 3, 982-986, 1995.
doi:10.1063/1.871377        Google Scholar

9. Platt, R., B. Anderson, J. Christofferson, J. Enns, M. Haworth, J. Metz, P. Pelletier, R. Rupp, and D. Voss, "Low-frequency, multigigawattmicrowave pulses generated by a virtual cathode oscillator," Appl. Phys. Lett., Vol. 54, No. 13, 1215-1216, 1989.
doi:10.1063/1.100719        Google Scholar

10. Fazio, M. V., R. F. Hoeberling, and J. K. Wright, "Narrow-band microwave generation from an oscillating virtual cathode in a resonantcavity," J. Appl. Phys., Vol. 65, No. 3, 1321-1327, 1989.
doi:10.1063/1.343028        Google Scholar

11. Scarpetti, R. D. and S. C. Burkhart, "The study of a reflex oscillatorused to generate high-power microwaves," IEEE Trans. Plasma Sci., Vol. 13, No. 6, 506-512, 1985.
doi:10.1109/TPS.1985.4316465        Google Scholar

12. Davis, H. A., R. R. Bartsch, L. E. Thode, E. G. Sherwood, and R. M. Stringfield, "High-power microwave generation from a virtual cathodedevice," Phys. Rev. Lett., Vol. 55, No. 21, 2293-2296, 1985.
doi:10.1109/TPS.1985.4316463        Google Scholar

13. Sze, H., J. Benford, T. Young, D. Bromley, and B. Harteneck, "A radiallyand axially extracted virtual-cathode oscillator (vircator)," IEEE Trans. Plasma Sci., Vol. 13, No. 6, 492-497, 1985.
doi:10.2528/PIER05050903        Google Scholar

14. Puccini, A., "About the interference induced by electrons why does the electron behave like a wave," Progress In Electromagnetics Research, Vol. 58, 199-222, 2006.
doi:10.2528/PIER05041403        Google Scholar

15. Bopp III, C. L. and C. M. Butler, "Analysis of transmission of a signal through a complex cylindrical/coaxial cavity by transmission line methods," Progress In Electromagnetics Research, Vol. 56, 33-51, 2006.
doi:10.2528/PIER06071102        Google Scholar

16. Soliman, E. A., A. Helaly, and A. A. Megahed, "Propagation of electromagnetic waves in planar bounded plasma region," Progress In Electromagnetics Research, Vol. 67, 25-37, 2007.
doi:10.1163/156939306777443015        Google Scholar

17. Rothenstein, B., S. Popescu, and G. J. Spix, "Relativistic derivations of the electric and magnetic fields generated by an electric point charge moving with constant velocity," Journal of Electromagnetic Waves and Applications, Vol. 20, No. 9, 1189-1194, 2006.
doi:10.2528/PIER04052001        Google Scholar

18. Sabry, R. and S. K. Chaudhuri, "Formulation of emission from relativistic free electrons in a ring structure for electro-optical applications," Progress In Electromagnetics Research, Vol. 50, 135-161, 2005.
doi:10.1109/TPS.2006.875762        Google Scholar

19. Xing, Q., D. Wang, F. Huang, and J. Deng, "Two-dimensional theoretical analysis of the dominant frequency in the inward-emitting coaxial vircator," IEEE Trans. Plasma Sci., Vol. 34, No. 3, 584-589, 2006.
doi:10.2528/PIER97050700        Google Scholar

20. Hillion, P., "Electromagnetic pulses in dispersive media," Progress In Electromagnetics Research, Vol. 18, 245-260, 1998.
doi:10.2528/PIER02021703        Google Scholar

21. Hillion, P., "Electromagnetic pulse propagation in dispersive media," Progress In Electromagnetics Research, Vol. 35, 299-314, 2002.
doi:10.2528/PIER05051201        Google Scholar

22. Sten, J. C. and A. Hujanen, "Aspects on the phase delay and phase velocity in the electromagnetic near-field," Progress In Electromagnetics Research, Vol. 56, 67-80, 2006.        Google Scholar