时变电磁场边界条件 ·同理 V×月=J+ D V=V+V 8t D=D,+D 月=i,+Hn V×i2=j2+ D. 8t 5=J,+J g,×月，-+0可，×=1+ Ot 8t Ax(H,-H)=Js 4,-.)-。+号0-n ops V,Js+(02m-Jn)=- 8t iv)-m-J=nD。-D） (D,-D)=Ps →j0 lexu@mail.xidian.edu.cn 17时变电磁场边界条件  同理 lexu@mail.xidian.edu.cn 17 1 1 1 2 2 2 D H J t D H J t ∂ ∇× = + ∂ ∂ ∇× = + ∂       ∇=∇ +∇ t n HHH = +t n   DDD = +t n   1 2 1 1 2 2 , n n t tn tt n D D HJ EJ t t ∂ ∂ ∇× = + ∇× = + ∂ ∂     t n JJJ = +   2 1 21 2 1 ( )( ) ( ) t t t nn n n HH J J DD t ∂ ∇× − = − + − ∂      2 1 ˆ ( ) S nH H J ×−=   21 2 1 ˆˆˆ( )( ) ( ) tS n n n n n J nJ J n D D t ∂ − ∇⋅ − − = − ∂  2 1 ( ) S tS n n JJJ t ∂ρ ∇ ⋅ + − =− ∂  j t ω ∂ → ∂ 2 1 ˆ ( ) S nD D ⋅−= ρ   XIDIAN UNIVERSITY LEXU@MAIL.XIDIAN.EDU.CN