Wang Zi-Cheng, Lu De-Jian, Wang Li, Li Hai-Qiang, Zhang Shi-Jie, Xu An-Yu, Hao Bao-Liang, Song Pei-De, Dai Zhi-Hao. Investigation of Circular Comb Slow-Wave Structure of THz Backward-Wave Oscillators[J]. Journal of Electronics & Information Technology, 2008, 30(11): 2792-2794. doi: 10.3724/SP.J.1146.2007.00797
Citation:
Wang Zi-Cheng, Lu De-Jian, Wang Li, Li Hai-Qiang, Zhang Shi-Jie, Xu An-Yu, Hao Bao-Liang, Song Pei-De, Dai Zhi-Hao. Investigation of Circular Comb Slow-Wave Structure of THz Backward-Wave Oscillators[J]. Journal of Electronics & Information Technology, 2008, 30(11): 2792-2794. doi: 10.3724/SP.J.1146.2007.00797
Wang Zi-Cheng, Lu De-Jian, Wang Li, Li Hai-Qiang, Zhang Shi-Jie, Xu An-Yu, Hao Bao-Liang, Song Pei-De, Dai Zhi-Hao. Investigation of Circular Comb Slow-Wave Structure of THz Backward-Wave Oscillators[J]. Journal of Electronics & Information Technology, 2008, 30(11): 2792-2794. doi: 10.3724/SP.J.1146.2007.00797
Citation:
Wang Zi-Cheng, Lu De-Jian, Wang Li, Li Hai-Qiang, Zhang Shi-Jie, Xu An-Yu, Hao Bao-Liang, Song Pei-De, Dai Zhi-Hao. Investigation of Circular Comb Slow-Wave Structure of THz Backward-Wave Oscillators[J]. Journal of Electronics & Information Technology, 2008, 30(11): 2792-2794. doi: 10.3724/SP.J.1146.2007.00797
3-D electromagnetic simulation software is used to calculate the dispersion and interaction impedance of circular comb Slow-Wave Structure (SWS) which works for Terahertz (THz) Backward-wave Oscillators (BWO). The results show that the inner radius of SWS is 0.175mm in the band of 430-570GHz, and the inner radius of SWS is 0.1mm in the band of 760-940GHz. The large radius of SWS is a great help for improving beam transmission. The interaction impedance of fundamental backward wave of the SWS is smaller than 1 is a good explain to the truth that the electronic efficiency of THz BWO is smaller than 0.01%.
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