Ku波段高功率过模圆波导到8路矩形波导功分器

胡祥刚; 苏建仓; 李梅; 李锐; 程杰; 张建德; 吴少彤

doi:10.11884/HPLPB202436.240198

Ku波段高功率过模圆波导到8路矩形波导功分器

doi: 10.11884/HPLPB202436.240198

胡祥刚^{1, 2, 3,},
苏建仓^{2, 3},
李梅^{2, 3},
李锐^{2, 3},
程杰^{2, 3},
张建德¹,
吴少彤^{2, 3}

1.
国防科技大学前沿交叉学科学院，长沙 410073
2.
西北核技术研究所，西安 710024
3.
先进高功率微波技术重点实验室，西安 710024

详细信息

作者简介:
胡祥刚，huxianggang@nint.ac.cn

中图分类号: TN811;TN814
计量
- 文章访问数: 138
- HTML全文浏览量: 42
- PDF下载量: 23
- 被引次数: 0
出版历程
- 收稿日期: 2024-06-16
- 修回日期: 2024-07-17
- 录用日期: 2024-08-08
- 网络出版日期: 2024-09-25
- 刊出日期: 2024-11-08

Power divider from Ku-band high power over-mode circular waveguide to 8-channel rectangular waveguide

Hu Xianggang^{1, 2, 3
,},
Su Jiancang^{2, 3},
Li Mei^{2, 3},
Li Rui^{2, 3},
Cheng Jie^{2, 3},
Zhang Jiande¹,
Wu Shaotong^{2, 3}

1.
College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China
2.
Northwest Institute of Nuclear Technology, Xi’an 710024, China
3.
Key Laboratory of Advanced Science and Technology on High Power Microwave, Xi’an 710024, China

摘要

摘要: 功分网络用于将HPM分成若干路后馈入移相器、单元天线等，其中过模圆波导到多路矩形波导功分器同时具有模式转换和功率分配功能，需具备高功率容量、高传输效率、低反射等特性。针对Ku波段GW级过模圆波导到8路矩形波导功分器，开展了设计、仿真、研制和小信号测试，建立了功率容量测试平台，对其功率容量进行了考核。小信号测试结果表明，该1分8路功分器，在14.7 GHz±200 MHz范围内，反射系数小于−20 dB，传输系数−9.1 dB左右，端口不平衡度小于0.4 dB；功率容量考核实验表明，该功分器功率容量超过900 MW。
- 高功率微波 /
- 功分器 /
- 过模圆波导 /
- 矩形波导 /
- 功率容量
Abstract: The power division network is one of the key components of high power microwave (HPM) phased array antenna. It is used to divide HPM into several paths and feed them into phase shifter and element antenna. In such a network, the over-mode circular waveguide to multi-channel rectangular waveguide power divider has the function of mode conversion and power distribution. It is the front end of the power division network and requires high power handling capability, high transmission efficiency and low reflection. In this paper, the design, simulation, fabrication, and small signal test of the power divider from Ku-band GW-level over-mode circular waveguide to 8-channel rectangular waveguide were carried out. Subsequently, the power handling capacity of the power divider was evaluated utilizing the established power capacity testing facility. The experimental outcomes demonstrated that within the frequency band of 14.7 GHz±200 MHz, the reflection coefficient was consistently below −20 dB, the transmission coefficient exceeded −9.1 dB, the port imbalance was maintained at less the 0.4 dB, and the power handling capacity exceeded 900 MW.
- high power microwave /
- power divider /
- over-mode circular waveguide /
- rectangular waveguide /
- power handling capability

HTML全文

图 1 功分器结构示意图

Figure 1. Power divider structure diagram

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图 2 功分器反射特性

Figure 2. Power divider reflection characteristic

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图 3 功分器传输特性

Figure 3. Power divider transmission characteristic

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图 4 功分器电场分布 @1GW

Figure 4. Power divider electric field distribution @1GW

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图 5 功分器小信号测试示意图

Figure 5. Power divider small signal test diagram

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图 6 S参数随频率变化

Figure 6. S parameters vs frequency

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图 7 功率容量考核实验

Figure 7. Power handling capability test

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图 8 HPM下的测试波形@50 Hz 200脉冲

Figure 8. Test waveform under HPM@50 Hz 200 pulses

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表 1 输出端口传输系数

Table 1. Transmission coefficients of the output port

frequency/GHz	S(2, 1:3)/dB	S(3, 1:3)/dB	S(4, 1:3)/dB	S(5, 1:3)/dB	S(6, 1:3)/dB	S(7, 1:3)/dB	S(8, 1:3)/dB	S(9, 1:3)/dB
14.7	−8.9	−8.8	−8.9	−9.2	−9.0	−9.1	−9.0	−8.9
15.0	−9.1	−9.0	−9.1	−9.6	−10.2	−10.1	−10.0	−9.7

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表 2 高功率下各输出端口传输系数@14.7 GHz

Table 2. Transmission coefficient of the output port on HPM @14.7 GHz

	S(2, 1:3)/dB	S(3, 1:3)/dB	S(4, 1:3)/dB	S(5, 1:3)/dB	S(6, 1:3)/dB	S(7, 1:3)/dB	S(8, 1:3)/dB	S(9, 1:3)/dB
small signal test	−8.9	−8.8	−8.9	−9.2	−9.0	−9.1	−9.0	−8.9
high power test	−9.2	−8.9	−9.0	−9.5	−9.3	−9.4	−9.0	−9.1
difference	−0.3	−0.1	−0.1	−0.3	−0.3	−0.3	−0.2	−0.2

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