C:E(z)根据 Maxwell程中场分量的关系求出, (%(%y0(+p ≤a E (%),myCopyright Wang Yan C: E(Z) 根据Maxwell方程中场分量的关系求出，  ( ) ( ) ( )  ( ) ( ) ( )  ( ) ( ) ( )  ( ) ( ) ( )               −      −  +       −      +  +            = − + +     / K U sin m 1 a K Wr n W / K U sin m 1 a K Wr n W /J U sin m 1 a Ur J n U /J U sin m 1 a Ur J n U 2 m 1 m 2 m 1 m 2 m-1 m 1 m 1 m 1 0 k a j A EZ r  a r  a