Influence of characteristic impedance selection of switching oscillator on output waveform

Jiang Hongqiu; Yang Lanjun; Guan Jinqing; Xu Haipeng; Zhang Zhiyuan

doi:10.11884/HPLPB201830.170324

Volume 30 Issue 2

Feb. 2018

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Jiang Hongqiu, Yang Lanjun, Guan Jinqing, et al. Influence of characteristic impedance selection of switching oscillator on output waveform[J]. High Power Laser and Particle Beams, 2018, 30: 023001. doi: 10.11884/HPLPB201830.170324

Citation:

Jiang Hongqiu, Yang Lanjun, Guan Jinqing, et al. Influence of characteristic impedance selection of switching oscillator on output waveform[J]. High Power Laser and Particle Beams, 2018, 30: 023001. doi: 10.11884/HPLPB201830.170324

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Influence of characteristic impedance selection of switching oscillator on output waveform

doi: 10.11884/HPLPB201830.170324

State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049, China

Received Date: 2017-08-25
Rev Recd Date: 2017-10-13
Publish Date: 2018-02-15

Abstract

Abstract

Switch oscillator is one of the important methods for broadband high power electromagnetic pulse generation. This paper uses the switch excitation coaxial oscillator as an example, the theoretical calculation and simulation as the main means to study the following three relationships: the characteristics impedance of transmission line and switch oscillator energy storage, the characteristic impedance of the transmission line and the antenna impedance, the characteristic impedance of the transmission line and impedance of switch. The results show that the when characteristics impedance of the transmission line is smaller, the oscillator energy storage is higher; the antenna impedance and transmission line impedance ratio increases, the effective output cycle and quality factor increases, and the energy concentration increases, the spectrum bandwidth reduces, the energy efficiency increases first and then decreases; while the transmission line characteristic impedance is very small, the influence of the switch on the output signal is significant. With characteristic impedance of the transmission line decreasing, the center frequency of the output signal reduces, the quality factor decreases, energy concentration is weak and the bandwidth spectrum expands.
- wideband electromagnetic pulse,
- switching oscillator,
- characteristic impedance,
- antenna impedance,
- switching on impedance

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References(10)

References

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