Simulation analysis of the equivalent circuit of a gyro-magnetic nonlinear transmission line

Zhai Hongxiang; Zhu Danni; Hu Biao; Cui Yancheng; Wang Haitao

doi:10.11884/HPLPB202638.250123

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Article Navigation > High Power Laser and Particle Beams > 2026 > Accepted Manuscript

Zhai Hongxiang, Zhu Danni, Hu Biao, et al. Simulation analysis of the equivalent circuit of a gyro-magnetic nonlinear transmission line[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202638.250123

Citation:

Zhai Hongxiang, Zhu Danni, Hu Biao, et al. Simulation analysis of the equivalent circuit of a gyro-magnetic nonlinear transmission line[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202638.250123

Citation:

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Simulation analysis of the equivalent circuit of a gyro-magnetic nonlinear transmission line

doi: 10.11884/HPLPB202638.250123

1.
College of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
2.
National Key Laboratory of Electromagnetic Energy, Military Electrical Science and Technology Institute, Wuhan 430033, China

Received Date: 2025-05-12
Accepted Date: 2025-08-29
Rev Recd Date: 2025-09-15

Available Online: 2025-11-29

Abstract

Abstract

Background
Owing to its unique miniaturized structure, real-time frequency tuning capability, and broad-spectrum microwave output characteristics, the gyromagnetic nonlinear transmission line (GNLTL) exhibits considerable application potential in the development of small-scale solid-state high-power microwave sources. This has driven the need for in-depth exploration of its circuit characteristics and parameter influences to optimize its performance.
Purpose
This study aims to derive the analytical expression of solitons in the GNLTL equivalent circuit, construct a reliable equivalent circuit model of GNLTL, and systematically clarify the influence mechanism of key circuit parameters on its output characteristics.
Methods
Firstly, the analytical expression of solitons in the GNLTL equivalent circuit was obtained through theoretical deduction. Secondly, an equivalent circuit model of GNLTL was established using circuit simulation methods. Finally, the influence mechanism of key circuit parameters on the output characteristics of GNLTL was systematically investigated based on the constructed model.
Results
The results show that the saturation current and initial inductance of the nonlinear inductor have a decisive effect on the nonlinear characteristics of the circuit: when these two parameters are small, the leading edge of the output pulse is not fully steepened and is accompanied by oscillating waveforms; increasing them improves the steepening degree of the pulse leading edge, indicating a positive correlation between these two parameters and circuit nonlinearity. Additionally, enhanced nonlinearity of the equivalent circuit leads to a decrease in output frequency; saturation current, saturation inductance, initial inductance, and capacitance per stage all show a negative correlation with the output microwave frequency.
Conclusions
The findings of this study clarify the relationship between key circuit parameters and the nonlinear characteristics as well as output frequency of GNLTL, thereby providing theoretical and simulation references for the design and performance analysis of gyromagnetic nonlinear transmission lines.
- gyro-magnetic nonlinear transmission line,
- nonlinear circuit,
- soliton,
- circuit simulation,
- dispersion,
- nonlinear inductance

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References(16)

References

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