Analysis of groove NRD waveguide bend using the coupled-mode theory

  • Li-Ling Xiao
  • Wen-Xun Zhang


In this paper, the propagation characteristics of the dominant mode in GNRD guide bend are analysed employing the coupled-mode theory. The curves of bending loss vs. The groove depth or width, radius of curvature and frequency are given, which caused by the mode conversion of the operatingLSM 11 x mode to the parasiticLSE 11 x mode. It is found that the groove depth has a great influence upon the bending loss than the other parameters. According to the theoretical results, appropriate sizes of groove and radius of curvature should be chosen in designing a GNRD bend structure.


Propagation Characteristic Theoretical Result Great Influence Dominant Mode Mode Conversion 


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Copyright information

© Plenum Publishing Corporation 1992

Authors and Affiliations

  • Li-Ling Xiao
    • 1
  • Wen-Xun Zhang
    • 1
  1. 1.State Key Laboratory of MMWSoutheast UniversityNanjingPeople's Republic of China

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