1、DBtBEtDJH0VSSlSlSvdsdnDsdnBsdtBl dEsdtDJl dH0 SliSdtBl dEiEtB左旋左旋SLdSdtDl dHdHtD右旋右旋 nMaxwell方程组的逻辑关系方程组的逻辑关系n本构关系本构关系n时变电磁场的边界条件时变电磁场的边界条件n坡印亭能量定理坡印亭能量定理 n电磁位电磁位BEt 0B()0Bt0()()BEt DHJt0()()DHJt ()0JDtJt Jt 00sin()yHEtzt0cos()xEa Etz000 xyzxaaaHExyztE 00 sin()yxxyyzza Etza Ha Ha Ht 00 xzHH00cos()yE
2、Hatz H00()DEPBHMJEDEBHJE()Fq EvB()fEvBEJB F ()()()nnFn n FF n n()()ntFn n FnnFF nFt FAFtn tnAAA()()tntntnAAFF tnFFF()()()()ttntntnttnntnAAAAFF ttntnnttAFAAF nF1F2Sh1221()()SD dSDSnDn SDDn S VShSShdVQ0lim21()SnDD21nnSDDnnDD21nnEE221121()0nBBnnBB21nnHH2211nblhllbnLSBE dldst 0lim0ShBBdsbh ltt 21()0nEEl
3、EEnblEEnblEElllEllEl dEl)()()()(12121221()LSDH dlJdst0lim0ShDDdsbh ltt lHHnblHHnblHHlllHllHl dHl)()()()(121212210limSShJ dSJ bh lJb l 21()Sb nHHlb Jl 21()SnHHJ12ttSHHJ12ttHH2211ttBB0012121212BBnJHHnDDnEEnsSn理想介质的边界条件理想介质的边界条件 理想介质：理想介质：=0 无欧姆损耗的简单介质无欧姆损耗的简单介质 理想介质表面无自由面电荷和自由面电流理想介质表面无自由面电荷和自由面电流1212
4、1212()0()0()0()0nHHnEEnBBnDD121212120000ttttnnnnHHEEBBDD00SSnHJnEn Bn D0(,0,)sincos()xH x yta Haxtay00sincos()sincos()SzxyJnHaa Haxtaya Haxtayn StSJt ),()cos(sin)sin(sin)cos(sin000yxcaytaxaHaytaxaHaytaxHytSS000(,0,)sincos()cos(,0,)sincos()coszzaHD x ytaaxtayayaHE x ytaaxtayay881 60cos(15 105)20cos(1
5、5 105)(/)xEatztzV m82cos(15 105)(/)xEa Atz V m8182 80 cos(15 10)cos(15 10)xxEatEa AtmVA/80yEHEazt 881 0.1592 cos(15 105)0.0531 cos(15 105)(/)yHatztzA m812 0.106 cos(15 10)yHHat82 0.1061 cos(15 1050)(/)yHatzA m,E H VPJ EdV DJHt()VVDJ EdVEHEdVt ()()()EHHEEH BEt()VVBDJ EdVHEEHdVtt ()ABA BBAttt()2AA AAt
6、t,DE BH 1()()22BHHHH HB Htttt1()()22DEEEE ED Etttt()()SVBDEHdSHEJ E dVtt 11()22SVVEHdSB HD E dVJ EdVt EDwe21HBwm21SEH11()22SVVEHdSB HD E dVJ EdVt 11()()22SVVEHdSEH dVB HD EJ E dVt SdHESHESS11022E DB Ht()0SEHdSHES11022E DB Ht()SVEHdSJ EdV HES11()22SVVEHdSB HD E dVJ EdVt()SPEHdSHESb2zJIEab2IHabEH2bIaJz2232rISEHab 22232222rSSS dSS a dSIlblIbbI R bS()2lrDaarbrbaE drU()1rUEa arbbr na2IHar221zUISEHabrnabaSUIrdrabnrUIdSSP2122nP.187 5.5,5.8,5.9 Thank you
