Miniaturized Phase-Shifting Power Divider Based on Slow-Wave Substrate Integrated Waveguide

HUANG Wen; ZHAN Zhong-jie; CHEN Xiao

doi:10.12263/DZXB.20230047

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Miniaturized Phase-Shifting Power Divider Based on Slow-Wave Substrate Integrated Waveguide

PAPERS | 更新时间：2025-12-11

- Miniaturized Phase-Shifting Power Divider Based on Slow-Wave Substrate Integrated Waveguide
- ACTA ELECTRONICA SINICA Vol. 52, Issue 5, Pages: 1562-1569(2024)
- 作者机构：
  
  重庆邮电大学光电工程学院，重庆 400065
- 作者简介：
- 基金信息：
  
  Chongqing Postgraduate Innovative Research Project(CYS22445)
- DOI：10.12263/DZXB.20230047
  CLC： TN623;TN626
- Received：13 January 2023，
  
  Revised：2023-05-24，
  
  Published：25 May 2024
- 稿件说明：
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黄文,詹中杰,陈肖. 基于慢波基片集成波导的小型化移相功分器[J]. 电子学报,2024,52(05):1562-1569.

HUANG Wen, ZHAN Zhong-jie, CHEN Xiao. Miniaturized Phase-Shifting Power Divider Based on Slow-Wave Substrate Integrated Waveguide[J]. Acta Electronica Sinica, 2024, 52(05): 1562-1569.
黄文,詹中杰,陈肖. 基于慢波基片集成波导的小型化移相功分器[J]. 电子学报,2024,52(05):1562-1569. DOI：10.12263/DZXB.20230047

HUANG Wen, ZHAN Zhong-jie, CHEN Xiao. Miniaturized Phase-Shifting Power Divider Based on Slow-Wave Substrate Integrated Waveguide[J]. Acta Electronica Sinica, 2024, 52(05): 1562-1569. DOI：10.12263/DZXB.20230047

摘要

针对移相器和功分器的功能融合设计，提出了一种基于慢波基片集成波导（Slow-Wave Substrate Integrated Waveguide，SW-SIW）的小型化移相功分器，两个输出分支等长带宽，可实现30°相移量．其中一个输出分支通过基片集成波导（Substrate Integrated Waveguide，SIW）实现，而另一个输出分支将互补开口谐振环（Complementary Split-Ring Resonator，CSRR）加载在上层金属表面，代替传统SIW连续的金属表面，该CSRR由经典CSRR结构演变而来，同时为了降低由CSRR加载所造成的相位上的不稳定，在CSRR内部添加金属化通孔，实现SW-SIW

，使得截止频率和相速度降低．测试结果表明，移相功分器在9.0~11.8 GHz频带范围内反射系数|S

|小于

https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=61953359&type=

2.28600001

https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=61953339&type=

4.99533367

dB，相对工作带宽为26.9%，插入损耗小于1.3 dB．两个输出端口的相位差稳定在

https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=61953341&type=

2.28600001

https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=61953361&type=

10.07533360

，幅度差小于1.4 dB，实现了等功率分配．所设计的移相功分器具有较小的尺寸和低制造成本，适合应用在相控阵天线中．

Abstract

In this paper

a miniaturized phase-shifting power divider based on slow-wave substrate integrated waveguide (SW-SIW) is proposed for the functional integration of phase shifter and power divider. The design features two output branches with equal lengths and widths to achieve a 30° phase shift. One output branch is realized by a conventional substrate integrated waveguide (SIW)

while the other output branch is loaded a complementary split-ring resonator (CSRR) on the upper metal surface to replace the continuous metal surface of the conventional SIW

and the CSRR is evolved from the classic CSRR structure. Meanwhile

a metallized via-

hole is added inside the CSRR to reduce the phase instability caused by the loading of the CSRR

so a SW-SIW is realized

and the cut-off frequency and phase velocity are reduced. The measured results show that the reflection coefficient |S

| of the phase-shifting power divider is less than

https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=61953374&type=

2.28600001

https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=61953365&type=

4.99533367

dB in the frequency band of 9.0~11.8 GHz

the relative operating bandwidth is 26.9%

and the insertion loss is less than 1.3 dB. The phase difference between the two output ports is stable at

https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=61953376&type=

2.28600001

https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=61953369&type=

10.07533360

and the amplitude difference is less than 1.4 dB realizing equal power distribution. The designed phase-shifting power divider has a small size and low manufacturing cost

which is suitable for application in phased-array antennas.

关键词

Keywords

references

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