Search search
submit Submit
Publication Date
to
Vol. 47
Latest Volume
All Volumes
PIER 180 [2024] PIER 179 [2024] PIER 178 [2023] PIER 177 [2023] PIER 176 [2023] PIER 175 [2022] PIER 174 [2022] PIER 173 [2022] PIER 172 [2021] PIER 171 [2021] PIER 170 [2021] PIER 169 [2020] PIER 168 [2020] PIER 167 [2020] PIER 166 [2019] PIER 165 [2019] PIER 164 [2019] PIER 163 [2018] PIER 162 [2018] PIER 161 [2018] PIER 160 [2017] PIER 159 [2017] PIER 158 [2017] PIER 157 [2016] PIER 156 [2016] PIER 155 [2016] PIER 154 [2015] PIER 153 [2015] PIER 152 [2015] PIER 151 [2015] PIER 150 [2015] PIER 149 [2014] PIER 148 [2014] PIER 147 [2014] PIER 146 [2014] PIER 145 [2014] PIER 144 [2014] PIER 143 [2013] PIER 142 [2013] PIER 141 [2013] PIER 140 [2013] PIER 139 [2013] PIER 138 [2013] PIER 137 [2013] PIER 136 [2013] PIER 135 [2013] PIER 134 [2013] PIER 133 [2013] PIER 132 [2012] PIER 131 [2012] PIER 130 [2012] PIER 129 [2012] PIER 128 [2012] PIER 127 [2012] PIER 126 [2012] PIER 125 [2012] PIER 124 [2012] PIER 123 [2012] PIER 122 [2012] PIER 121 [2011] PIER 120 [2011] PIER 119 [2011] PIER 118 [2011] PIER 117 [2011] PIER 116 [2011] PIER 115 [2011] PIER 114 [2011] PIER 113 [2011] PIER 112 [2011] PIER 111 [2011] PIER 110 [2010] PIER 109 [2010] PIER 108 [2010] PIER 107 [2010] PIER 106 [2010] PIER 105 [2010] PIER 104 [2010] PIER 103 [2010] PIER 102 [2010] PIER 101 [2010] PIER 100 [2010] PIER 99 [2009] PIER 98 [2009] PIER 97 [2009] PIER 96 [2009] PIER 95 [2009] PIER 94 [2009] PIER 93 [2009] PIER 92 [2009] PIER 91 [2009] PIER 90 [2009] PIER 89 [2009] PIER 88 [2008] PIER 87 [2008] PIER 86 [2008] PIER 85 [2008] PIER 84 [2008] PIER 83 [2008] PIER 82 [2008] PIER 81 [2008] PIER 80 [2008] PIER 79 [2008] PIER 78 [2008] PIER 77 [2007] PIER 76 [2007] PIER 75 [2007] PIER 74 [2007] PIER 73 [2007] PIER 72 [2007] PIER 71 [2007] PIER 70 [2007] PIER 69 [2007] PIER 68 [2007] PIER 67 [2007] PIER 66 [2006] PIER 65 [2006] PIER 64 [2006] PIER 63 [2006] PIER 62 [2006] PIER 61 [2006] PIER 60 [2006] PIER 59 [2006] PIER 58 [2006] PIER 57 [2006] PIER 56 [2006] PIER 55 [2005] PIER 54 [2005] PIER 53 [2005] PIER 52 [2005] PIER 51 [2005] PIER 50 [2005] PIER 49 [2004] PIER 48 [2004] PIER 47 [2004] PIER 46 [2004] PIER 45 [2004] PIER 44 [2004] PIER 43 [2003] PIER 42 [2003] PIER 41 [2003] PIER 40 [2003] PIER 39 [2003] PIER 38 [2002] PIER 37 [2002] PIER 36 [2002] PIER 35 [2002] PIER 34 [2001] PIER 33 [2001] PIER 32 [2001] PIER 31 [2001] PIER 30 [2001] PIER 29 [2000] PIER 28 [2000] PIER 27 [2000] PIER 26 [2000] PIER 25 [2000] PIER 24 [1999] PIER 23 [1999] PIER 22 [1999] PIER 21 [1999] PIER 20 [1998] PIER 19 [1998] PIER 18 [1998] PIER 17 [1997] PIER 16 [1997] PIER 15 [1997] PIER 14 [1996] PIER 13 [1996] PIER 12 [1996] PIER 11 [1995] PIER 10 [1995] PIER 09 [1994] PIER 08 [1994] PIER 07 [1993] PIER 06 [1992] PIER 05 [1991] PIER 04 [1991] PIER 03 [1990] PIER 02 [1990] PIER 01 [1989]
All Journals
PIER PIER B PIER C PIER M PIER Letters
2004-04-15
Analysis of a Coaxial Waveguide Corrugated with Wedge-Shaped Radial Vanes Considering Azimuthal Harmonic Effects
By
Kalpana Singh,

    Dr. Kalpana Singh

    Department of Electronics Engineering

    Institute of Technology

    India

    Homepage

Pradip Kumar Jain,

    Dr. Pradip Kumar Jain

    Department of Electronics Engineering

    Banaras Hindu University

    India

    Homepage

B. N Basu

    Dr. B. N Basu

    Department of Electronics Engineering

    Institute of Technology

    India

    Homepage

, Vol. 47, 297-312, 2004
doi:10.2528/PIER04010201
Abstract
The analysis was developed for a coaxial waveguide for two configurations - one in which the central conductor is corrugated in axial slot-wedges, with ridge-wedges between them, and the other in which the outer conductor is provided with radial metal vane-wedges. Azimuthal harmonics were considered in the structure regions, the effects of which were ignored in earlier published analyses based on the surface impedance model to replace the interface between the two structure regions by a homogeneous reactive surface. For both the structure configurations, one and the same form of the dispersion relation with proper interpretation of the symbol for the radius of the ridge/vane was obtained. The dispersion relation obtained by the present analysis was validated against that obtained by other analytical methods reported in the literature. The shape of the dispersion characteristics is found uncontrollable by the structure parameters, and therefore the structure cannot be used for broadbanding a gyro-TWT. However, the plot of the eigenvalue versus the ratio of the outer conductor to ridge/vane radii strongly depended on the ridge/vane parameters. Thus the structure with its cross section tapered and ridge/groove parameters optimized has the potential for providing mode rarefaction in high-power, over-sized, over-moded gyrotrons.
Citation
Kalpana Singh, Pradip Kumar Jain, and B. N Basu, "Analysis of a Coaxial Waveguide Corrugated with Wedge-Shaped Radial Vanes Considering Azimuthal Harmonic Effects," , Vol. 47, 297-312, 2004.
doi:10.2528/PIER04010201
References

1. Watkins, D. A., Topics in Electromagnetic Theory, John Wiley & Sons, 1958.

2. Gandhi, O. P., Microwave Engineering and Applications, Pergamon Press, 1981.

3. Clarricoats, P. J. B., Corrugated Horns for Microwave Antennas, Peregrinus, 1991.

4. Saha, P. K. and P. J. B. Clarricoats, "Propagation and radiation behaviour of corrugated waveguide feed," Proc. IEEE, Vol. 118, No. 9, 1167-1176, 1971.

5. Saha, P. K. and P. J. B. Clarricoats, "Propagation and radiation behaviour of corrugated coaxial horn feed," Proc. IEEE, Vol. 118, No. 9, 1177-1186, 1971.

6. Jain, P. K. and B. N. Basu, "Electromagnetic wave propagation through helical structures," Electromagnetic Fields in Unconventional Materials and Structures, 433-480, 2000.

7. Chong, C. K., D. B. McDermott, A. T. Balkcum, and N. C. Luhmann Jr., "Nonlinear analysis of high-harmonic slotted gyro-TWT amplifier," IEEE Trans. Plasma Sci., Vol. 20, No. 6, 176-187, 1992.
doi:10.1109/27.142818

8. Shrivastava, U. A., "Small-signal theories of harmonic gyrotron and peniotron amplifiers and oscillators," Ph.D. thesis, 1985.

9. Singh, G., S. M. S. Ravichandra, P. V. Bhaskar, P. K. Jain, and B. N. Basu, "Analysis of an azimuthally periodic vane-loaded cylindrical waveguide for a gyro-travelling-wave tube," Int. J. Electronics, Vol. 86, No. 12, 1463-1479, 1999.
doi:10.1080/002072199132554

10. Agrawal, M., G. Singh, P. K. Jain, and B. N. Basu, "Analysis of a tapered vane-loaded broadband Gyro-TWT," IEEE Trans. Plasma Sci., Vol. 29, No. 3, 1-6, 2001.
doi:10.1109/27.928941

11. Li, H. and X. Li, "Analysis and calculation of an electron cyclotron maser having inner and outer slotted structure," Int. J. Electronics, Vol. 70, No. 1, 213-219, 1991.

12. Iatrou, C. T., S. Kern, and A. B. Pavelyev, "Coaxial cavities with corrugated inner conductor for gyrotrons," IEEE Trans. Microwave Theory Tech., Vol. 44, No. 1, 56-64, 1996.
doi:10.1109/22.481385

13. Barroso, J. J., R. A. Correa, and P. J. de Castro, "Gyrotron coaxial cylindrical resonators with corrugated inner conductor: Theory and experiment," IEEE Trans. Microwave Theory Tech., Vol. 46, No. 9, 1221-1230, 1998.
doi:10.1109/22.709460

14. Dasgupta, D. and P. K. Saha, "Modal properties of quadrupleridged circular waveguide by Galerkin's method," Indian J. Pure and Appl. Phys., Vol. 22, No. 4, 106-109, 1984.

15. Fliflet, A. W., "Linear theory and nonlinear theory of the Dopplershifted cyclotron maser based on TE and TM waveguide modes," Int. J. Electronics, Vol. 61, No. 6, 1049-1080, 1986.

16. Waldron, R. A., Theory of Guided Electromagnetic Waves, Van Nostrand Reinhold Company, 1970.

Download Full Article (248) View Full Article volume
The EM Academy piers.org jpier.org Who's Who in EM
Copyright © 2022 The Electromagnetics Academy. All Rights Reserved.