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In this paper, a folded waveguide is adopted as a slow wave structure (SWS) of the extended interaction oscillator (EIO). An EIO with frequency 105 GHz in sub-Terahertz band is studied in detail, including the dispersion relation and the impedance of the SWS, and the variation of starting current with the period number, which provides an effective way to reduce starting current. On this basis, from the PIC simulation studies are discussed the EIO beam-wave interaction and output characteristics under the operation modes of low current continuous wave and strong current pulse. Further, the tuning characteristic of the EIO is analyzed, showing that output power reaches 26-50 W and the corresponding frequency range is 105.26-105.31 GHz. By EDM technology two fabrication methods of the SWS are investigated and the transmission properties of the SWS and the window are tested indicating that they are in good agreement with the simulation results.
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Keywords:
- extended interaction oscillator (EIO) /
- folded waveguide /
- output window /
- starting current
[1] Dave B, Peter H, Mark H, Albert R, Brian S 2005 Conf. 30th Infrared and Millimeter Waves and 13th Terahertz Electronics p84
[2] Albert R, Dave B, Mark H, Brian S 2007 Conf. 32th Infrared and Millimeter Waves and 15th Terahertz Electronics p892
[3] Mead J B, McIntosh R E 1990 IEEE Trans. Microwave Theory Tech. 38 1252
[4] Zhang K C, Wu Z H, Liu S G 2009 Journal of Infrared, Millimeter and Terahertz Waves 30 309
[5] Zhang K C, Wu Z H, Liu S G 2008 Chin. Phys. B 17 3402
[6] Zhang K C 2011 Acta Electronica Sinica 39 632 (in Chinese) [张开春 2011 电子学报 39 632]
[7] Wu Z H, Zhang K C, Liu S G 2010 Journal of University of Electronic Science and Technology of China 39 58 (in Chinese) [吴振华, 张开春, 刘盛纲 2010 电子科技大学学报 39 58]
[8] Zhang K C, Wu Z H, Yan Y, Huang Y, Li X Y, Liu S G 2010 Journal of Infrared, Millimeter and Terahertz Waves 31 543
[9] Wu Z H, Zhang K C, Liu S G 2009 Acta Electronica Sinica 37 2677 (in Chinese) [吴振华, 张开春, 刘盛纲 2009 电子学报 37 2677]
[10] Bllarrae S, Kory C L, Lee W J 2002 IEEE Int. Conf. Vacuum Electronics p26
[11] Bllarrae S, Booske J H, Kory C L 2004 IEEE Trans. Plasma Science 32 1002
[12] Zhang K C 2009 Ph. D. Dissertation (Chengdu: University of Electronic Science and Technology of China) (in Chinese) [张开春 2009 博士学位论文(成都:电子科技大学)]
[13] Preist D H, Leidigh W J 1963 IEEE Trans. ED 3 201
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[1] Dave B, Peter H, Mark H, Albert R, Brian S 2005 Conf. 30th Infrared and Millimeter Waves and 13th Terahertz Electronics p84
[2] Albert R, Dave B, Mark H, Brian S 2007 Conf. 32th Infrared and Millimeter Waves and 15th Terahertz Electronics p892
[3] Mead J B, McIntosh R E 1990 IEEE Trans. Microwave Theory Tech. 38 1252
[4] Zhang K C, Wu Z H, Liu S G 2009 Journal of Infrared, Millimeter and Terahertz Waves 30 309
[5] Zhang K C, Wu Z H, Liu S G 2008 Chin. Phys. B 17 3402
[6] Zhang K C 2011 Acta Electronica Sinica 39 632 (in Chinese) [张开春 2011 电子学报 39 632]
[7] Wu Z H, Zhang K C, Liu S G 2010 Journal of University of Electronic Science and Technology of China 39 58 (in Chinese) [吴振华, 张开春, 刘盛纲 2010 电子科技大学学报 39 58]
[8] Zhang K C, Wu Z H, Yan Y, Huang Y, Li X Y, Liu S G 2010 Journal of Infrared, Millimeter and Terahertz Waves 31 543
[9] Wu Z H, Zhang K C, Liu S G 2009 Acta Electronica Sinica 37 2677 (in Chinese) [吴振华, 张开春, 刘盛纲 2009 电子学报 37 2677]
[10] Bllarrae S, Kory C L, Lee W J 2002 IEEE Int. Conf. Vacuum Electronics p26
[11] Bllarrae S, Booske J H, Kory C L 2004 IEEE Trans. Plasma Science 32 1002
[12] Zhang K C 2009 Ph. D. Dissertation (Chengdu: University of Electronic Science and Technology of China) (in Chinese) [张开春 2009 博士学位论文(成都:电子科技大学)]
[13] Preist D H, Leidigh W J 1963 IEEE Trans. ED 3 201
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