Design and implementation of a miniaturised ultra-wideband coaxial balun

Zhang Xinlin; Xi Songyue; Jiang Bo; Chen Peng; Huang Xing; Lu Hongmin

doi:10.11884/HPLPB202436.240090

Volume 36 Issue 8

Jul. 2024

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Article Navigation > High Power Laser and Particle Beams > 2024 > 36(8): 083004

Zhang Xinlin, Xi Songyue, Jiang Bo, et al. Design and implementation of a miniaturised ultra-wideband coaxial balun[J]. High Power Laser and Particle Beams, 2024, 36: 083004. doi: 10.11884/HPLPB202436.240090

Citation:

Zhang Xinlin, Xi Songyue, Jiang Bo, et al. Design and implementation of a miniaturised ultra-wideband coaxial balun[J]. High Power Laser and Particle Beams, 2024, 36: 083004. doi: 10.11884/HPLPB202436.240090

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Design and implementation of a miniaturised ultra-wideband coaxial balun

doi: 10.11884/HPLPB202436.240090

Zhang Xinlin^1
,,
Xi Songyue²,
Jiang Bo¹,
Chen Peng^{1, 3},
Huang Xing¹,
Lu Hongmin^{1
,
,}

1.
School of Electronic Engineering, Xidian University, Xi’an 710071, China
2.
Xi’an XICE Test Technology Co. Ltd., Xi’an 710065, China
3.
Northwest Institute of Nuclear Technology, Xi’an 710024, China

Received Date: 2024-03-12
Accepted Date: 2024-05-22
Rev Recd Date: 2024-05-22

Available Online: 2024-05-27

Publish Date: 2024-07-04

Abstract

Abstract

Baluns with lumped parameters are compact and easily integrated, but they have limitations in terms of power handling and bandwidth. On the other hand, baluns with distributed parameters, such as coaxial baluns, are extensively utilized in the design of high-power irradiation antennas for differential feeding and impedance matching, owing to their wide bandwidth, low loss, and high power capacity. To address the engineering requirements of wideband high-power irradiation antennas in a specific experimental system, a coaxial balun with an impedance transformation ratio of 1∶2.25 loaded with a ferrite magnetic ring is designed and realised based on the coaxial balun design method with any non-integer impedance transformation ratio. Simulation and measurement results demonstrate that the balun operates within the frequency range of 0.01−1.30 GHz, with a phase imbalance within ±5° of 180° and an amplitude imbalance within ±1 dB. The insertion losses of both paths are below 1.5 dB. The electrical performance of the balun at 500 W power feed is simulated and analysed to verify its power capacity.
- coaxial balun,
- ultra-wideband,
- high power,
- ferrite ring,
- balanced circuit

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References(15)

References

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