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首页> 外文期刊>Review of Scientific Instruments >W-band waveguide bandpass filter with E-plane cut
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W-band waveguide bandpass filter with E-plane cut

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摘要

In this paper, we present a design and measurements of a five-section bandpass filter with a passband from 96 to 106 GHz. The insertion loss is less than 1.4 dB in the passband, and the rejection is better than 40 dB in the range from 115 to 142 GHz. We use transmission line coupling theory based on Tchebyscheff's synthesis in order to provide an initial guess for the geometrical parameters of the filter such as cavity lengths and coupling widths. The filter is manufactured from brass in two halves in the E-plane cut topology. The S-parameters of the filter are measured and compared with the simulations. The measured passband insertion loss is approximately 0.4 dB worse than in the simulation, and the measured passband width is approximately 3.4 narrower. The measured filter attenuation roll-off corresponds well to the simulation. We also compare our S-parameter measurements of the E-plane filter with corresponding measurements of a very similar H-plane filter. The transmission and reflection characteristics of the E-plane filter are better than those of the H-plane filter.

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  • 来源
    《Review of Scientific Instruments》 |2014年第7期|074703-1-074703-6|共6页
  • 作者

    Vedran Furtula; Mirko Salewski;

  • 作者单位

    Department of Microtechnology and Nanoscience, Chalmers University of Technology, SE-41296 Gothenburg, Sweden;

    Department of Physics, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark;

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  • 原文格式 PDF
  • 正文语种 英语
  • 中图分类 仪器、仪表;
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