Coupling Enhancement of THz Metamaterials Source with Parallel Multiple Beams

ZHANG Kaichun; FENG Yuming; ZHAO Xiaoyan; HU Jincheng; XIONG Neng; GUO Sidou; TANG Lin; LIU Diwei

doi:10.23919/cje.2022.00.032

Volume 32 Issue 4

Jul. 2023

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Article Navigation > Chinese Journal of Electronics > 2023 > 32(4): 678-682

ZHANG Kaichun, FENG Yuming, ZHAO Xiaoyan, et al., “Coupling Enhancement of THz Metamaterials Source with Parallel Multiple Beams,” Chinese Journal of Electronics, vol. 32, no. 4, pp. 678-682, 2023, doi: 10.23919/cje.2022.00.032

Citation:

ZHANG Kaichun, FENG Yuming, ZHAO Xiaoyan, et al., “Coupling Enhancement of THz Metamaterials Source with Parallel Multiple Beams,” Chinese Journal of Electronics, vol. 32, no. 4, pp. 678-682, 2023, doi: 10.23919/cje.2022.00.032

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Coupling Enhancement of THz Metamaterials Source with Parallel Multiple Beams

doi: 10.23919/cje.2022.00.032

1.
THz Center, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China

Funds: This work was supported by the National Key Research and Development Program of China (2017YFA0701003), the National Natural Science Foundation of China (61988102, 61921002), the Fundamental Research Funds for the Central Universities (ZYGX2020ZB008), the Natural Science Foundation of Sichuan Province (2022NSFSC0513), and the Fund of Key Laboratory of Terahertz (THz) Technology, Ministry of Education, China.

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Author Bio:
Kaichun ZHANG received the B.S. and M.S. degrees in Sichuan University and Ph.D. degree in University of Electronic Science and Technology of China, Chengdu, China. His research interests include terahertz science and technology and its application.(Email: zh.kch@163.com)

Yuming FENG received the B.E. degree from University of Electronic Science and Technology of China (UESTC), Chengdu, China, in 2017. He is currently studying for a master’ s degree in UESTC. His research interests focuses on effcient terahertz sources.(Email: 202122022111@std.uestc.edu.cn)

Xiaoyan ZHAO received the B.E. degree from School of Physics, UESTC. She is currently studying for a master’s degree in electronic science and technology in School of Electronic Science and Engineering, UESTC. Her research interests include terahertz science and technology and its application.(Email: 1374889019@qq.com)
Received Date: 2022-03-04
Accepted Date: 2022-06-23

Available Online: 2022-07-08

Publish Date: 2023-07-05

Abstract

Abstract

In this paper, we propose a terahertz radiation source over the R-band (220–325 GHz) based on metamaterials (MTMs) structure and parallel multiple beams. The effective permittivity and permeability of the slow-wave structure can be obtained through the S-parameter retrieval approach, using numerical simulation. Additionally, the electromagnetic properties of the MTMs structure are analyzed, including the dispersion and the coupling impedance. Furthermore, we simulate the beam-wave interaction of the backward oscillator (BWO) with MTMs structure and parallel multiple beams by 3-D particle-in-cell code. It is observed that parallel multiple beams can highly enhance the beam-wave interaction and greatly enlarge the output power. These results indicate that the saturated (peak) output power is approximately 63W with the efficiency of roughly 6% at the operating frequency of 231 GHz, under the beam voltage of 35 kV and total current of 30 mA (6-beam) respectively. Meanwhile, the BWO can generate power of 10–80 W in the tunable frequency of 220–240 GHz.
- Terahertz source,
- Parallel multiple beams,
- Beam-wave interaction,
- Metamaterials

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References(14)

References

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