Frequency plane branch-point singularities in the analysis of modal interactions on guided-wave structures

被引：0
|
作者：
Yakovlev, A. B. [1 ]
Hanson, G. W. [2 ]
机构：
[1] Univ Mississippi, Dept Elect Engn, University, MS 38677 USA
[2] Univ Wisconsin, Dept Elect Engn, Milwaukee, WI 53211 USA
来源：
MMET 2006: 11TH INTERNATIONAL CONFERENCE ON MATHEMATICAL METHODS IN ELECTROMAGNETIC THEORY, CONFERENCE PROCEEDINGS | 2006年
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D O I：
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中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Complex frequency-plane branch-point singularities are investigated in connection with mode interaction phenomena on guided-wave structures. It is found that certain types of branch points are directly associated with the leaky-wave cutoff behavior and modal interaction regimes on planar dielectric slab waveguides (including nonreciprocal waveguides) and printed-circuit transmission lines. The evolution of branch points in the complex frequency plane controls the modal behavior in the regions of interest. An important conclusion is that, in general, the discrete mode spectrum of guided-wave structures is not unique.
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页码：52 / +
页数：3
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