扇面波导中TE模及其激励  

TE MODE AND ITS EXCITATION IN A SECTORAL WAVEGUIDE

作　　者：吕善伟[1] 李思超 

机构地区：[1]北京航空航天大学电子工程系 [2]洛阳014中心

出　　处：《北京航空航天大学学报》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

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.

关 键 词：扇面波导 横电模 截止波长 电磁场 

分 类 号：O441.4[理学—电磁学]