{"id":370626,"date":"2024-07-05T04:22:18","date_gmt":"2024-07-05T04:22:18","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/guanyuyonggongshijisuanmodeexpansionzhongnhepyufangzhendedaojieguobuyizhidewenti\/"},"modified":"2024-07-05T04:22:18","modified_gmt":"2024-07-05T04:22:18","slug":"guanyuyonggongshijisuanmodeexpansionzhongnhepyufangzhendedaojieguobuyizhidewenti","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/guanyuyonggongshijisuanmodeexpansionzhongnhepyufangzhendedaojieguobuyizhidewenti\/","title":{"rendered":"\u5173\u4e8e\u7528\u516c\u5f0f\u8ba1\u7b97MODEEXPANSION\u4e2dN\u548cP\u4e0e\u4eff\u771f\u5f97\u5230\u7ed3\u679c\u4e0d\u4e00\u81f4\u7684\u95ee\u9898"},"content":{"rendered":"

\u5c0a\u656c\u7684\u8001\u5e08\uff1a\u6700\u8fd1\u6211\u5728\u7528\u516c\u5f0f\u9a8c\u8bc1MODE EXPANSION\u4e2d\u7684P\u548cN\uff1b\u6211 \u67e5\u5f97\u4fe1\u606f\u5f97 Nm = 0.5. ∗ R Em × H∗ m · dS P in = 0.5. ∗ R Ein × H∗ m · dS \u90a3\u4e48\u6211\u5316\u7b80\u5f97\u5230 Nm = 0.5. ∗ dx. ∗ dy P (Exm ∗ Hym∗ − Eym ∗ Hxm∗ ) Pm = 0.5. ∗ dx. ∗ dy P (Exin ∗ Hyin∗ − Eyin ∗ Hxin∗ ) FDTD\u4ee3\u7801\uff1a selectall; delete; um=10^(-6); addrect; set(‘x’,0); set(‘x span’,0.22*um); set(‘y’,0); set(‘y span’,0.5*um); set(‘z min’,-3*um); set(‘z max’,10*um); set(‘material’,'<Object defined dielectric>’); set(‘index’,10); addfdtd; set(‘mesh type’,”custom non-uniform”); set(‘define x mesh by’,”maximum mesh step”); set(“dx”,0.008*um); set(‘define y mesh by’,”maximum mesh step”); set(“dy”,0.008*um); set(‘define z mesh by’,”maximum mesh step”); set(“dz”,0.05*um); set(‘x’,0); set(‘x span’,1*um); set(‘y’,0); set(‘y span’,1*um); set(‘z’,2*um); set(‘z span’,6*um); addmode; set(“injection axis”,”z”); set(“wavelength start”,1.55*um); set(“wavelength stop”,1.55*um); set(“x”,0); set(“x span”,2*um); set(“y”,0); set(“y span”,2*um); set(“z”,-0.1*um); addpower; set(“name”,”T”); set(‘x’,0); set(‘x span’,2*um); set(‘y’,0); set(‘y span’,2*um); set(‘z’,3.5*um); set(“output Px”,1); set(“output Py”,1); set(“output Pz”,1); addmodeexpansion; set(“name”,”modeexpansion”); set(“monitor type”,”2D Z-normal”); set(‘x’,0); set(‘x span’,2*um); set(‘y’,0); set(‘y span’,2*um); set(‘z’,3.5*um); setexpansion(“T”,”T”); run; clear; T_fund=getresult(‘modeexpansion’,’expansion for T’); Pin=T_fund.getattribute(‘P’); Nm=T_fund.getattribute(‘N’); Exin=pinch(getresult(‘T’,’Ex’)); Eyin=pinch(getresult(‘T’,’Ey’)); Hxin=pinch(getresult(‘T’,’Hx’)); Hyin=pinch(getresult(‘T’,’Hy’)); dx=getdata(‘source’,’delta_x’); dy=getdata(‘source’,’delta_y’); chang=getresult(“source”,”mode profile”); Exm=pinch(chang.getattribute(“Ex”)); Eym=pinch(chang.getattribute(“Ey”)); Hxm=pinch(chang.getattribute(“Hx”)); Hym=pinch(chang.getattribute(“Hy”)); matlabsave(“modeexpansion \u7ed3\u679c\u9a8c\u8bc1”); \u5bfc\u5165matlab\u540e\u7684\u4ee3\u7801 Pin1=Exin.*conj(Hyin)-Eyin.*conj(Hxin); Pin1=sum(Pin1); Pin1=Pin1′; Pin1=sum(Pin1); Pin1=0.5.*dx(1,1).*dy(1,1).*Pin1; Nm1=Exm.*conj(Hym)-Eym.*conj(Hxm); Nm1=sum(Nm1); Nm1=Nm1′; Nm1=sum(Nm1); Nm1=0.5.*dx(1,1).*dy(1,1).*Nm1; \u5f97\u5230\u7ed3\u679c\uff1a Nm=4.33941221933428e-16 + 1.41321061678239e-29i; Pin=4.33926030958045e-16 – 1.62136768260574e-18i; Nm1=1.09206140594385e-16; Pin1=1.08481507739623e-16 + 4.05341920671331e-19i; \u6ce8\u610f\u5230modeexpansion\u5f97\u5230\u7684Pin\u548cNm\u4e0e\u516c\u5f0f\u8ba1\u7b97\u5f97\u5230\u7684Pin1\u548cNm1\u6709\u4e00\u4e2a4\u500d\u5173\u7cfb\uff0c\u4f46\u6211\u4ecd\u7136\u4e0d\u6e05\u695a\u4e3a\u4ec0\u4e48\u4e24\u8005\u4e0d\u4e00\u6837\u3002<\/a><\/p>\n","protected":false},"template":"","class_list":["post-370626","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t