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Telecommunications and Radio Engineering
SJR: 0.202 SNIP: 0.2 CiteScore™: 0.23

ISSN 印刷: 0040-2508
ISSN オンライン: 1943-6009

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Telecommunications and Radio Engineering

DOI: 10.1615/TelecomRadEng.v76.i11.10
pages 941-952

THE BLOCKAGE EFFECT IN WAVEGUIDE BENDS IN THE VICINITY OF THE CUTOFF FREQUENCY OF THE SECOND-ORDER MODE

V. L. Pazynin
O.Ya. Usikov Institute for Radio Physics and Electronics, National Academy of Sciences of Ukraine 12, Academician Proskura St., Kharkiv 61085, Ukraine

要約

In the paper, a rigorous mathematical model of electromagnetic wave diffraction in the bend of a plane-parallel waveguide is developed. Numerical simulation of such a waveguide bend has revealed the effect of its complete blockage at a frequency close to the cutoff frequency of the second-order mode. The resonant nature of this effect has been established to be consisting in excitation of a blocking oscillation in such a waveguide irregularity. It is concluded that a waveguide bend can be considered as an open waveguide resonator. Importance of the solved problem is determined by wide application of waveguide bends in the microwave technology.


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