Slow-wave circuits and power synthesis techniques of folded waveguides for terahertz applications

Huaixin Xiang; Min Miao; Zhensong Li; Xingwang Bian

doi:10.11884/HPLPB202436.240007

High Power Laser and Particle Beams, Volume. 36, Issue 12, 123003(2024)

Slow-wave circuits and power synthesis techniques of folded waveguides for terahertz applications

Huaixin Xiang^1,2,3, Min Miao^1,2,3, Zhensong Li^1,2,3、*, and Xingwang Bian⁴

¹Key Laboratory of Information and Communication Systems, Ministry of Industry and Information Technology (Beijing Information Science & Technology University), Beijing 100192, China

²Academy of Smart IC and Network, Beijing Information Science & Technology University, Beijing 100192, China

³Key Laboratory of the Ministry of Education for Optoelectronic Measurement Technology and Instrument, Beijing Information Science & Technology University, Beijing 100192, China

⁴National Key Laboratory of Science and Technology on Vacuum Electronics, Beijing Vacuum Electronics Research Institute, Beijing 100015, China

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Figures & Tables(10)

Fig. 1. Folded waveguide diagram

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Fig. 2. E-plane five-branch directional coupler

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Fig. 3. Simulation results of 3 dB directional coupler

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Fig. 4. Straight tapering transition waveguide

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Fig. 5. Transition waveguide S-parameters and VSWR

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Fig. 6. Power combination folded waveguide travelling wave tube

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Fig. 7. Frequency vs output power

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Fig. 8. Power combination diagram of out-of-tube folded waveguide travelling wave tube

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Fig. 9. Diagram of power combination folded waveguide travelling wave tube and power combination details

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Table 1. Structure parameters of slow wave structure unit: mm
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Table 1. Structure parameters of slow wave structure unit: mm
a b p h r
0.56 0.12 0.18 0.20 0.08

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Huaixin Xiang, Min Miao, Zhensong Li, Xingwang Bian. Slow-wave circuits and power synthesis techniques of folded waveguides for terahertz applications[J]. High Power Laser and Particle Beams, 2024, 36(12): 123003

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