Premium
A numerical study on the influence of an input mode mixture in high‐power microwave waveguide mode converters
Author(s) -
Yang Shiwen,
Tan Soon Hie,
Li Hongfu
Publication year - 2000
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(20000120)24:2<129::aid-mop14>3.0.co;2-x
Subject(s) - spurious relationship , converters , microwave , mode (computer interface) , waveguide , radiation mode , equilibrium mode distribution , power (physics) , physics , leaky mode , perturbation (astronomy) , optics , electronic engineering , engineering , computer science , single mode optical fiber , quantum mechanics , optical fiber , operating system , machine learning
Previous designs for waveguide mode converters generally assume a pure input mode at the input. However, in the actual case, the main input mode is usually accompanied by several spurious modes with small fractional power levels. Based on the coupled‐mode theory, this letter presents a study on the influence of an input mode mixture in waveguide mode converters with varying waveguide radii. A new waveguide radius perturbation form for transforming such a spurious input mode mixture simultaneously into the main output mode is also proposed in this letter. ©2000 John Wiley & Sons, Inc. Microwave Opt Technol Lett 24: 129–131, 2000.