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 operating LSM11x mode to the parasitic LSE11x 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. © 1992 Plenum Publishing Corporation.
CITATION STYLE
Xiao, L. L., & Zhang, W. X. (1992). Analysis of groove NRD waveguide bend using the coupled-mode theory. International Journal of Infrared and Millimeter Waves, 13(7), 971–980. https://doi.org/10.1007/BF01009621
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