MODES OF ELLIPTIC WAVE-GUIDES - A CORRECTION

被引:40
作者
GOLDBERG, DA
LASLETT, LJ
RIMMER, RA
机构
[1] Lawrence Berkeley Laboratory, Berkeley, CA
关键词
D O I
10.1109/22.60005
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
We show that the fields associated with the TM01mode of an elliptical waveguide are qualitatively different from those which have appeared in the standard literature for the past 50 years, and that the original fields as plotted were also in qualitative disagreement with the analytic expressions which accompanied them. Nonetheless, the cutoff frequencies given for that mode, as well as for the five other modes described in those references, are exceedingly accurate (within roughly 1%) for elliptical eccentricities as large as 0.75; for eccentricities in excess of 0.9, the inaccuracy increases from 5% to nearly 50%, depending on the mode in question. © 1990 IEEE
引用
收藏
页码:1603 / 1608
页数:6
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[2]  
Chu L. J., 1938, J APPL PHYS, V9, P583
[3]  
Marcuvitz N., 1986, WAVEGUIDE HDB, P80
[4]  
MCLACHLAN NW, 1947, THEORY APPLICATION M