摘要
文中给出扇面波导中TE模场通用式,TE波的简化公式,主模TE_(11)模截止波长的精确与近似值的计算实例。用分离变量法、傅氏变换和留数定理求解Helmholtz方程,获得电偶极子激励的Green函数及其场。
The general electromagnetic fields and the approximate formulas of the transverse elec-trie mode in a sectoral waveguide are found,and the approximately simplified formulas of the dominant mode from the general relationships are discussed. The strict and approximate calculation of the cutoff wavelength for the dominant mode is given. The scalar Helmholtz equation in cylindrical coordinate is constructed, using the method of separating variable, and fourier transform,and residue theory,and the Green's function and field of the transverse electric mode associated with the electric diple are also obtained.
出处
《北京航空航天大学学报》
EI
CAS
CSCD
北大核心
1993年第2期24-29,共6页
Journal of Beijing University of Aeronautics and Astronautics
基金
国家自然科学基金
关键词
扇面波导
横电模
截止波长
电磁场
sectoral waveguide , transverse electric mode, cutoff wavelength , Green's function .electromagnetic field.
