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The TM 0 n multimodal excitation of a coaxial line probe‐to‐circular waveguide
Author(s) -
Chuan Yu,
Geyi Wen
Publication year - 1998
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/(sici)1098-2760(19981020)19:3<225::aid-mop15>3.0.co;2-0
Subject(s) - waveguide , coaxial , optics , excitation , excited state , transmission line , microwave , physics , scattering , power (physics) , reflection (computer programming) , electrical engineering , engineering , atomic physics , computer science , quantum mechanics , programming language
The power transmission problem of a coaxial line probe‐to‐circular waveguide for TM 0 n multimodal excitation is rigorously treated using the conservation of complex power technique. The overall scattering matrix of the coaxial line probe‐circular waveguide is deduced. Computed results for the reflection coefficient of the coaxial line probe are then compared with the experimental results, and they agree well. The power distribution of various order modes excited in a circular waveguide is investigated as a function of the probe length. Analysis shows that the power of the highest order TM 0 n propagation mode excited in the circular waveguide is usually the largest. © 1998 John Wiley & Sons, Inc. Microwave Opt Technol Lett 19: 225–227, 1998.