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Symmetry considerations applied to 3-D dyadic Green's functions for three-port inhomogeneous microstrip ferrite circulator

✍ Scribed by Clifford M. Krowne

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 84 KB
Volume: 19
Category: Article
ISSN: 0895-2477
DOI: 10.1002/(sici)1098-2760(19981020)19:3<227::aid-mop16>3.0.co;2-z

No coin nor oath required. For personal study only.

✦ Synopsis

mode excited in the circular waveguide, is the largest, the power of the TM mode is small, and that of the TM 02 01

mode is almost negligible. When hr is near 0.75, the power of the TM mode will convert into that of the TM mode.

03 02

Furthermore, the computed results satisfy the power conservation law, i.e., the sum of the normalized TEM mode reflection power and the TM propagation power is 1. 0 n

IV. CONCLUSION

TM multimode excitation of a coaxial line probe-to-circular 0 n waveguide is investigated using the conservation of complex power technique. Computed results for the reflection coefficient of the coaxial line probe are compared with experimental results. The power distribution of various order modes excited in the circular waveguide as a function of the probe length is also studied. Analysis shows that the highest order TM propagation mode excited in the circular waveguide is 0 n usually the largest.

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