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波纹波导极化器的分析 被引量:6

Analysis of Corrugated Waveguide Polarizer
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摘要 极化器是天线馈电系统中的重要器件,但传统的极化器带宽一般很窄。介绍了一种新型的宽带极化器(波纹波导极化器),其结构是在方波导的两壁加载横槽波纹,使波导中的2个正交模产生了90°的相位差。因而将线极化信号转化成圆极化信号。波纹波导极化器在超过30%的带宽内仍然有很好的相移特性,因此他在宽带反射面天线馈电系统中有着很广阔的应用。 A polarizer is an important component for antenna feed system. However, the operation bandwidth of conventional polarizer is narrow. This paper introduces a new broadband polarizer (corrugated waveguide polarizer), which consists of a square waveguide loaded with transverse corrugation on opposite walls. Two orthogonal modes can produce a differential phase shift of 90° after passing it; So a linear polarization wave is converted into a circular polarization one. Corrugated waveguide polarizer has good phased performance over a bandwidth of more than 30% .Thus it may be widely applied in antenna feed systems,
出处 《无线电通信技术》 2008年第2期36-38,共3页 Radio Communications Technology
关键词 波纹波导 模式匹配法 极化器 宽带 corrugated waveguide mode matching method polarizer broadband
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参考文献4

  • 1ABRAMOV V I, LEE TAE-HYUNG. Compact square waveguide iris polarizer for rotation of linear polarization [ R ], European Microwave Conference, 2005 (6) : 1023 - 1026,
  • 2LOUIS F L, CHARLES M K. A Corrugated waveguide phase shifter and its use in HPM dual-reflector antenna arrays [ J]. IEEE Transaction on Microwave and Techniques, 1995 ( 1 ) :31 - 35.
  • 3SRIKANTH S. A wide-band corrugated rectangular waveguide phase shifter for cryogenically cooled receivers compact square waveguide iris polarizer for rotation of linear polarization [J]. IEEE Microwave and Gudede Wave Leter,1997(6):150- 152.
  • 4LEE JOSHING, NAM SANGWOOK. Design of E-plane monopole feeder using muhimode corrugated rectangular waveguide[J] .Antennas and Propagation Society International Symposium,2006(7) : 1595 - 1598.

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