Acta Metallurgica Sinica(English letters) ›› 2011, Vol. 18 ›› Issue (5): 124-128.doi: 10.1016/S1005-8885(10)60114-8

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Four-way radial waveguide power divider with high power-handling capacity

张健穹,刘庆想,李相强,赵柳   

  1. 西南交通大学
  • 收稿日期:2011-03-01 修回日期:2011-05-31 出版日期:2011-10-31 发布日期:2011-10-13
  • 通讯作者: 张健穹 E-mail:qilinxing@163.com
  • 基金资助:

    This work was supported by the Fundamental Research Funds for the Central Universities (SWJTU09ZT38, SWJTU09BR241).

Four-way radial waveguide power divider with high power-handling capacity

  1. School of Physical Science and Technology, Southwest Jiaotong University, Chengdu 610031, China
  • Received:2011-03-01 Revised:2011-05-31 Online:2011-10-31 Published:2011-10-13
  • Contact: Jian-qiong Zhang E-mail:qilinxing@163.com
  • Supported by:

    This work was supported by the Fundamental Research Funds for the Central Universities (SWJTU09ZT38, SWJTU09BR241).

摘要:

In this paper, a novel four-way radial waveguide power divider with low insertion loss and high power-handling capacity is proposed. This power divider consists of an input coaxial waveguide, a central probe, a radial waveguide, four equispaced identical coupling probes, four equispaced identical adjusting posts and four output coaxial waveguides. The novel coupling probes and the adjusting posts are used to realize favorable uniform power division. A power divider with the center frequency of 4.1 GHz is designed, fabricated and measured. Good agreement between simulation and experiment is noted. The measured 15 dB return-loss bandwidth of the power divider is about 600 MHz. The measured 0.5 dB insertion loss bandwidth is wider than 700 MHz. The differences and isolations between the output ports are also discussed. The power-handling capacity of the power divider is analyzed through simulation, and the result proves its usability in high power applications.

关键词:

power divider, high power, low loss, multiport, radial waveguide

Abstract:

In this paper, a novel four-way radial waveguide power divider with low insertion loss and high power-handling capacity is proposed. This power divider consists of an input coaxial waveguide, a central probe, a radial waveguide, four equispaced identical coupling probes, four equispaced identical adjusting posts and four output coaxial waveguides. The novel coupling probes and the adjusting posts are used to realize favorable uniform power division. A power divider with the center frequency of 4.1 GHz is designed, fabricated and measured. Good agreement between simulation and experiment is noted. The measured 15 dB return-loss bandwidth of the power divider is about 600 MHz. The measured 0.5 dB insertion loss bandwidth is wider than 700 MHz. The differences and isolations between the output ports are also discussed. The power-handling capacity of the power divider is analyzed through simulation, and the result proves its usability in high power applications.

Key words:

power divider, high power, low loss, multiport, radial waveguide

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