[求助]帮忙看看我的编程思路有没有问题(附程序)

得到的结果pml不吸收 )TH@#1  
tic; v oj^pzZ  
clear; clc; \)?HJ  
N_iteration=1; "!%l/_p?  
%*********************************************************************** X*Prll(  
%     Fundamental constants :zF,A,)  
%*********************************************************************** 'ub@]ru|  
w=J3=T@TD  
cc=2.99792458e8;            %speed of light in free space OH(waKq2I  
muz=4.0*pi*1.0e-7;          %permeability of free space ;VO:ph4Aj  
epsz=1.0/(cc*cc*muz);       %permittivity of free space %Qdn  
kq,ucU%>p  
freq=5e+9;                  %frequency of source excitation d4c8~L H-  
Tc=0.2e-9                %Time shift, i.e. time for the center position of the pulse KNIn:K^/  
Tau=1/freq;                 %impulse width parameter, e.g.: 0.2ns pulse width here   )f<z%:I+Z  
                            % corresponds frequency of 1/Tau Hz,  i.e. uGEfIy 2  
                            % 0.2ns---5GHz,  0.5ns---2GHz 8q}q{8  
lambda=cc/freq;             %center wavelength of source excitation ~1vDV>dpE  
omega=2.0*pi*freq;           5S--'=fu+  
X*@dj_,  
M_factor=1;%1       % refine the mesh to get higher quality M_factor times meshed on 1e-3 ^RtIh-Z.9  
eM?I$ePTN  
SJ>vwmA4  
lv+TD!b   
nmax=500*M_factor;  %total number of calculating time steps   nmax=2200*M_factor; psMvq@>  
nstep=10;           % =250 every nstep give a display ?'{SX9  
'u |c  
FE|
JHh$  
K}MK<2vU  
P! #[mio  
%*********************************************************************** h|{]B,.Lh  
%     Grid parameters D\NKC@(M  
%*********************************************************************** JHTSUq  
ie=100*M_factor;   %100           %number of grid cells in x-direction &AbNWtCV+G  
je=100*M_factor;  %100          %number of grid cells in y-direction Vt&2z)Zz  
8&`LYdzt  
ib=ie+1; o!ebs0  
jb=je+1; wyO4
Y  
imp_x=50*M_factor;   %imp_x=5*M_factor; %imp_x=10*M_factor; #KexvP&*  
imp_y=50*M_factor;         %(imp_x ,imp_y) is the location of the point source impulse aH/ k
Ua  
k5.Ln
a  
%%%%%%%%%%%%%%%%%%%%%%%%%%%%% X!dYdWw*m  
;P%1j|7  
%%%%%   fine meshed      %%%% _C[q4?  
dx=1e-3/M_factor   ;%  dx=0.25e-3;    %dx=1e-3  %dx=0.25e-3;    %dx=1e-3/M_factor;     %space increment of square lattice F%D.zvKN  
dt=dx/(2.0*cc);   %time step  dt=dx/(2.0*cc); .MoU1n{Yc  
U6fgo3RH  
iebc=8*M_factor;           %thickness of left and right PML region XG{zlOD+  
jebc=8*M_factor;           %thickness of front and back PML region 0*D$R`$  
rmax=0.000001;   %reflection factor ?x?? concerning PML issue ]R f[y  
orderbc=2; '^~{@~ ;%L  
ibbc=iebc+1; '=8d?aeF  
jbbc=jebc+1; M{T-iW"  
iefbc=ie+2*iebc; z !rL s76  
jefbc=je+2*jebc; V7fq4O^:  
ibfbc=iefbc+1; LR.<&m%~.  
jbfbc=jefbc+1; 7/@TF/V  
fN^8{w/O  
%*********************************************************************** )g#T9tx2D  
%     Material parameters WX|`1b  
%*********************************************************************** G.abql  
epss=10;   c?[I?ytl  
eps=7; =QiI :|eRA  
tau0=7e-12; Jgd'1'FOs  
sigdisp=(epss-eps)*epsz/tau0; =Qj{T  
sig=0.15+sigdisp; 8_B4?` k  
mur=1.0; Y;^l%ePuW  
sim=0; 3>`mI8$t  
%*********************************************************************** Hp!-248S  
%     Wave excitation 9u}Hmb  
%*********************************************************************** 3E
$f)  
source=zeros(1,nmax);   HjD8u`qQ  
%     for n=1:nmax   9BBmw(M}  
%         t(n)=dt*n; ryUQU^v  
%         source(n)=-sqrt(exp(1))*(2*pi/Tau)*(t(n)-Tc)*exp(-(1/2)*(2*pi*(t(n)-Tc)/Tau)^2);  % normalized o5uph=Q{  
%     end :C
s4NF   
    for  n=1:nmax           % n=n1:n2 BdblLUGK#  
         t(n)=dt*n; EPM
-df!=  
         source(n)=-sin(omega*(t(n)-Tc));   %  %Eq.(6) of Monocycle shapes paper         $OkBg0  
    end k(7&N0V%zz  
%*********************************************************************** " h~Zu  
%     Field arrays -23w2Qt  
%*********************************************************************** tKx~1-  
xvl#w  
ex=zeros(ie,jb);           %fields in main grid F]]]y5t  
px=zeros(ie,jb); q"sed]  
ey=zeros(ib,je); ]e>w}L(gV  
py=zeros(ib,je); >kDQkhZ  
hz=zeros(ie,je); KD7dye  
4,gK[ dc  
exbcf=zeros(iefbc,jebc);   %fields in front PML region }DfshZ0QM  
pxbcf=zeros(iefbc,jebc); ][h%UrV  
eybcf=zeros(ibfbc,jebc); _w+:Dv~*a  
pybcf=zeros(ibfbc,jebc); Yz"#^j}Kg  
hzxbcf=zeros(iefbc,jebc); V0.vQ/  
hzybcf=zeros(iefbc,jebc); /saIs%(fU  
rt~d6|6  
exbcb=zeros(iefbc,jbbc);   %fields in back PML region aPfO$b:  
pxbcb=zeros(iefbc,jbbc); J1RJ*mo7,  
eybcb=zeros(ibfbc,jebc); .A{tQ1&_  
pybcb=zeros(ibfbc,jebc); QIvVcfM^  
hzxbcb=zeros(iefbc,jebc); Z=Y& B>:[  
hzybcb=zeros(iefbc,jebc); j0S#>t  
YPK(be_|I  
exbcl=zeros(iebc,jb);      %fields in left PML region ju8q?Nyhs  
pxbcl=zeros(iebc,jb); 6x[}g  
eybcl=zeros(iebc,je); ujq=F  
pybcl=zeros(iebc,je); 9gEw
h<  
hzxbcl=zeros(iebc,je); ;jvBF4Lb>  
hzybcl=zeros(iebc,je); %wvdn  
a /l)qB#  
exbcr=zeros(iebc,jb);      %fields in right PML region "ZoRZ'i  
pxbcr=zeros(iebc,jb); z] PS
pUd  
eybcr=zeros(ibbc,je); _w(7u(Z  
pybcr=zeros(ibbc,je); E}Z/*lX  
hzxbcr=zeros(iebc,je); xU>WEm2  
hzybcr=zeros(iebc,je); OXSmt DvJ  
vkd.)x`J,  
%*********************************************************************** q#ClnG*  
%     Updating coefficients 5Y'qaIFR  
%*********************************************************************** u#;7<.D  
?o4C;  

FR4QUk  
   Qu"\wE^.`  
  haf=dt*sim/(2.0*muz*mur); E=CsIK   
  da=(1.0-haf)/(1.0+haf); ag#S6E^%S  
  db=dt/muz/mur/dx/(1.0+haf); `maKN\;  
dapm=(2*tau0-dt)/(2*tau0+dt); AFDq}*2Qb  
dbpm=2*tau0*dt/(2*tau0+dt)*sigdisp; i6tf2oqO7  
m=A(NKZ  
2U\u4NO{  
%*********************************************************************** K'Tm_"[u  
%     Geometry specification (main grid)

.4M.y:F  
%*********************************************************************** ;F!5%}OcL%  
  haf=dt*sim/(2.0*muz*mur); i,E{f  
dahz(1:ie,1:je)=(1.0-haf)/(1.0+haf); >WQMqQ^t@  
dbhz(1:ie,1:je)=dt/muz/mur/dx/(1.0+haf); ZQoU3AD;  
for i=1:ie ;I 9&]
 
    for j=1:jb   K>r,(zgVc  
EZy)A$|  
eaf=dt*sig/(2.0*epsz*eps); Ng>5?F^v  
caex(i,j)=(1.0-eaf)/(1.0+eaf);                % parameters refer to page 6 from !&ayYu##{  
cpex(i,j)=dt/epsz/eps/tau0/(1.0+eaf); nE&@Q  
cbex(i,j)=dt/epsz/eps/dx/(1.0+eaf);        % p.6 from the book of Yun Wenhua (Hz^)5(~  
dapx(i,j)=(2*tau0-dt)/(2*tau0+dt); ZaDyg"Tw+  
dbpx(i,j)=2*tau0*dt/(2*tau0+dt)*sigdisp; LX
7FaW  
^HThN  
    end % X+:o]T  
end :W:K:lk  
~u!|qM  
for i=1: ib }=UHbU.n~!  
    for j=1: je }Jve cRtg1  
    eaf=dt*sig/(2.0*epsz*eps); V>)OpvoT#  
caey(i,j)=(1.0-eaf)/(1.0+eaf);                % parameters refer to page 6 from H*QIB_  
cpey(i,j)=dt/epsz/eps/tau0/(1.0+eaf); $@Rxrx_@M  
cbey(i,j)=dt/epsz/eps/dx/(1.0+eaf);        % p.6 from the book of Yun Wenhua M7a.8-!1  
dapy(i,j)=(2*tau0-dt)/(2*tau0+dt); ^aMg/.
j  
dbpy(i,j)=2*tau0*dt/(2*tau0+dt)*sigdisp; R{3N&C  
@+
M /&  
    end 4(~L#}:r!  
end '(VJ&UlS2  
%*********************************************************************** C'+YQ]u  
%     Fill the PML regions KRLQ #,9  
%*********************************************************************** !M]uL&:  
delbc=iebc*dx; a 3b/e8c  
sigmam=-log(rmax/100.0)*epsz*cc*(orderbc+1)/(2*delbc); D},>mfzF  
/-ch`u md  
  eaf=dt*sig/(epsz*eps); <fjX[l<Uz  
  capml=exp(-eaf);  |`f$tj  
  cbpml=(1.0-capml)*dt/(eaf*epsz*eps*dx); tl4V7!U@^z  
  cppml=(1.0-capml)*dt/(eaf*epsz*eps*tau0);      % p.6 from the book of Yun Wenhua _ Yx]_Y9I  
dap=exp(-dt/tau0); m
)zUU  
dbp=(1-dap)*sigdisp*tau0; z8~NZ;A  
1k5Who@  
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +p_CN*10H  
%     FRONT region k\YG^I  
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% ,j}6? Q  
Zq|I,l0+E  
caexbcf(1:iefbc,1)=1.0;        %0.0   %1.0; NP#w+Qw  
cbexbcf(1:iefbc,1)=0.0; [vK^Um  
cpexbcf(1:iefbc,1)=0.0; a %'the  
dapxbcf(1:iefbc,1)=1.0; ='sHj4hU  
dbpxbcf(1:iefbc,1)=0.0; Xy&A~F  
bcfactor=eps*sigmam/(dx*(delbc^orderbc)*(orderbc+1)); Ic:(Gi- %  
for j=2:jebc zh`<WN&H  
  y1=(jebc-j+1.5)*dx; +L|?~p`
V  
  y2=(jebc-j+0.5)*dx; vNY{j7l/W  
  sigmay=bcfactor*(y1^(orderbc+1)-y2^(orderbc+1)); 0hNA1Fh{U  
   eaf1=dt*(sigmay+sigdisp)/(epsz*eps); gJXq^~-hd  
  ca1=exp(-eaf1); fue(UMF~  
  cb1=(1.0-ca1)/((sigmay+sigdisp)*dx); nFg~< $d  
  cp1=(1.0-ca1)/((sigmay+sigdisp)*tau0); ^qvbqfh  
  caexbcf(1:iefbc,j)=ca1; Ae^~Cz1qz  
  cbexbcf(1:iefbc,j)=cb1; 3!Ij;$  
  cpexbcf(1:iefbc,j)=cp1; BB$>h}  
  dapxbcf(1:iefbc,j)=dap; [0[i5'K:  
  dbpxbcf(1:iefbc,j)=dbp; %lx!.G  
end A*R^n}sh  
sigmay = bcfactor*(0.5*dx)^(orderbc+1); u+e{Mim  
  eaf1=dt*(sigmay+sigdisp)/(epsz*eps); }b"yU#`Q\  
  ca1=exp(-eaf1); He/8=$c%  
  cb1=(1.0-ca1)/((sigmay+sigdisp)*dx); 5 +YH.4R  
  cp1=(1.0-ca1)/((sigmay+sigdisp)*tau0); o&zJ=k[4  
B6nX$T4zP  
caex(1:ie,1)=ca1; C12Fl  
cbex(1:ie,1)=cb1; {G0T$,'DR  
cpex(1:ie,1)=cp1; 2dcV"lY  
dapx(1:ie,1)=dap; qIE9$7*X  
dbpx(1:ie,1)=dbp; `$<.pOm  
caexbcl(1:iebc,1)=ca1; }J`w4P  
cbexbcl(1:iebc,1)=cb1; 9y8&9<#  
cpexbcl(1:iebc,1)=cp1; ]z;I_-  
dapxbcl(1:iebc,1)=dap; 3{^9]7UC  
dbpxbcl(1:iebc,1)=dbp; mPK:R^RjG&  
caexbcr(1:iebc,1)=ca1; n;Q7X>-f8`  
cbexbcr(1:iebc,1)=cb1; )VS=E7[  
cpexbcr(1:iebc,1)=cp1; /cdC'g  
dapxbcr(1:iebc,1)=dap; 4*#18<u5  
dbpxbcr(1:iebc,1)=dbp; H8zK$!  
for j=1:jebc :WS@=sZN  
  y1=(jebc-j+1)*dx; B=T'5&  
  y2=(jebc-j)*dx; v0+BkfU+p  
  sigmay=bcfactor*(y1^(orderbc+1)-y2^(orderbc+1)); L>&t|T2  
  sigmays=sigmay*(muz/(epsz*eps)); \0I_<  
  da1=exp(-sigmays*dt/muz); b-?gw64#  
  db1=(1-da1)/(sigmays*dx); VUGmi]qd  
  dahzybcf(1:iefbc,j)=da1; )0W{]2  
  dbhzybcf(1:iefbc,j)=db1; 6|%?tex  
  caeybcf(1:ibfbc,j)=capml; f#"J]p  
  cbeybcf(1:ibfbc,j)=cbpml; LTCb@L{^i  
  cpeybcf(1:ibfbc,j)=cppml; Q&ptc>{bH6  
"]x'PI 4J  
  dahzxbcf(1:iefbc,j)=da; vHc%z$-d  
  dbhzxbcf(1:iefbc,j)=db; DE8n+Rm  
   @|m/djN5x  
   dapybcf(1:ibfbc,j)=dap; ~i{(<.he  
  dbpybcf(1:ibfbc,j)=dbp; TG?brgW  
end AW'0,b`v  
$q{!5-e  
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% e8!5I,I  
%     BACK region f=Gg9bnm3  
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% G1tY)_-8[  
caexbcb(1:iefbc,jbbc)=1.0;   % 0.0 %1.0; rjAn@!|:+  
cbexbcb(1:iefbc,jbbc)=0.0; Al^d$FaF  
cpexbcb(1:iefbc,jbbc)=0.0; l -mfFN  
   dapxbcb(1:iefbc,1)=1.0; ,vawzq[oSy  
  dbpxbcb(1:iefbc,1)=0.0; c?*=|}N  
bcfactor=eps*sigmam/(dx*(delbc^orderbc)*(orderbc+1));  6f>{"'  
for j=2:jebc 9Cp-qA%t  
  y1=(j-0.5)*dx; [z\$?VJspQ  
  y2=(j-1.5)*dx; S-b/S5  
  sigmay=bcfactor*(y1^(orderbc+1)-y2^(orderbc+1)); EIAc@$4  
eaf1=dt*(sigmay+sigdisp)/(epsz*eps); <CiSK!  
  ca1=exp(-eaf1); ^4hO  
  cb1=(1.0-ca1)/((sigmay+sigdisp)*dx); 1~`fVg  
  cp1=(1.0-ca1)/((sigmay+sigdisp)*tau0); -%CP@dAk  
  caexbcb(1:iefbc,j)=ca1; o#gWbAG;]b  
  cbexbcb(1:iefbc,j)=cb1; Hqx-~hQO  
  cpexbcb(1:iefbc,j)=cp1; 9c'xHO`  
  dapxbcb(1:iefbc,j)=dap; {.|CdqwY  
  dbpxbcb(1:iefbc,j)=dbp; I@~QV@U  
end TnA-;Ha  
sigmay = bcfactor*(0.5*dx)^(orderbc+1); J#(LlCs?@c  
qLG&WB  
   eaf1=dt*(sigmay+sigdisp)/(epsz*eps); RFcv^Xf  
  ca1=exp(-eaf1); nYSiS}?S.  
  cb1=(1.0-ca1)/((sigmay+sigdisp)*dx); .},'~NM]  
  cp1=(1.0-ca1)/((sigmay+sigdisp)*tau0); ) 7@ `ut  
caex(1:ie,jb)=ca1; v^NIx q}U  
cbex(1:ie,jb)=cb1; >J?fl8  
cpex(1:ie,jb)=cp1; F6|]4H.3Q  
dapx(1:ie,jb)=dap; 6OIte-c  
  dbpx(1:ie,jb)=dbp; D|p9qe5%  
caexbcl(1:iebc,jb)=ca1; /NFj(+&g+  
cbexbcl(1:iebc,jb)=cb1; eHZws`W  
cpexbcl(1:iebc,jb)=cp1; 1{.|+S Z!  
dapxbcl(1:iebc,jb)=dap; +Q)XH>jh  
  dbpxbcl(1:iebc,jb)=dbp; GPudaF{  
caexbcr(1:iebc,jb)=ca1; X-Kh(Z  
cbexbcr(1:iebc,jb)=cb1; 5` ~JPt  
cpexbcr(1:iebc,jb)=cp1; gzT*-  
dapxbcr(1:iebc,jb)=dap; 'ya{9EdlT  
dbpxbcr(1:iebc,jb)=dbp; ] vsz, 0  
for j=1:jebc ^*Q ?]N  
  y1=j*dx; @ioJ]$o7  
  y2=(j-1)*dx; vWv"  
  sigmay=bcfactor*(y1^(orderbc+1)-y2^(orderbc+1)); MK~8}x2K  
  sigmays=sigmay*(muz/(epsz*eps)); iByf{I>+  
  da1=exp(-sigmays*dt/muz); |F[+k e  
  db1=(1-da1)/(sigmays*dx); k5e;fA/w  
  dahzybcb(1:iefbc,j)=da1; hH3RP{'=  
  dbhzybcb(1:iefbc,j)=db1; {9pZ)tB  
  caeybcb(1:ibfbc,j)=capml; rfg'G&A(  
  cbeybcb(1:ibfbc,j)=cbpml; iC~^)-~H=w  
  cpeybcb(1:ibfbc,j)=cppml; 5m 4P\y^a  
  dahzxbcb(1:iefbc,j)=da; zxl@(hd  
  dbhzxbcb(1:iefbc,j)=db; gO- _  
   }C?'
BRX  
  dapybcb(1:ibfbc,j)=dap;  A,<E\  
  dbpybcb(1:ibfbc,j)=dbp; fOGFq1
D  
end n'LrQU  
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% =BAr .m+"  
%     LEFT region #A/  
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% KYI/  
8MtGlW%Eh  
caeybcl(1,1:je)=1.0;   %0.0%1.0; Eyqa?$R  
cbeybcl(1,1:je)=0.0; HM1Fz\Sf  
cpeybcl(1,1:je)=0.0; CwzZ8.o$i  
   dapybcl(1,1:je)=1.0; j2[+ztG  
  dbpybcl(1,1:je)=0.0; $( kF#  
bcfactor=eps*sigmam/(dx*(delbc^orderbc)*(orderbc+1)); LA5(sp@O  
for i=2:iebc a#k6&3m&  
  x1=(iebc-i+1.5)*dx; o#Dk& cH  
  x2=(iebc-i+0.5)*dx; ()?(I?I
I  
  sigmax=bcfactor*(x1^(orderbc+1)-x2^(orderbc+1)); "Gzz4D  
   eaf1=dt*(sigmax+sigdisp)/(epsz*eps); FVbb2Y?R  
  ca1=exp(-eaf1); ZvX*t)VjTz  
  cb1=(1.0-ca1)/((sigmax+sigdisp)*dx); u4?L 67x  
  cp1=(1.0-ca1)/((sigmax+sigdisp)*tau0); 8/cX]J  
  caeybcl(i,1:je)=ca1; Y\P8v  
  cbeybcl(i,1:je)=cb1; Gj?t_Zln  
  cpeybcl(i,1:je)=cp1; ueWEc^_>  
  dapybcl(i,1:je)=dap; BwpqNQN  
  dbpybcl(i,1:je)=dbp; [l??A
3G  
  caeybcf(i,1:jebc)=ca1; cwlRQzQ(  
  cbeybcf(i,1:jebc)=cb1; P3=G1=47U  
  cpeybcf(i,1:jebc)=cp1; xm~`7~nFR  
  dapybcf(i,1:jebc)=dap; ;xj?z\=Pg  
  dbpybcf(i,1:jebc)=dbp; @b%=H/5\  
  caeybcb(i,1:jebc)=ca1; bsli0FJSh'  
  cbeybcb(i,1:jebc)=cb1; $8h%a 8I  
  cpeybcb(i,1:jebc)=cp1; lfgq=8d  
   dapybcb(i,1:jebc)=dap;
7xlkZF  
  dbpybcb(i,1:jebc)=dbp; Q&tG4f<  
end AV]2euyn  
sigmax=bcfactor*(0.5*dx)^(orderbc+1); o:'MpKm  
   eaf1=dt*(sigmax+sigdisp)/(epsz*eps); ? :%@vM  
  ca1=exp(-eaf1); ML 9' |  
  cb1=(1.0-ca1)/((sigmax+sigdisp)*dx); Of#u  
  cp1=(1.0-ca1)/((sigmax+sigdisp)*tau0); cqkV9f8Ro  
caey(1,1:je)=ca1; J]'zIOQ  
cbey(1,1:je)=cb1; JPHL#sKyz  
cpey(1,1:je)=cp1; K@]4g49A/j  
dapy(1,1:je)=dap; R) h#Vc(  
dbpy(1,1:je)=dbp; `
/+>a8  
caeybcf(iebc+1,1:jebc)=ca1; |YWD8 +  
cbeybcf(iebc+1,1:jebc)=cb1; /36:ms A  
cpeybcf(iebc+1,1:jebc)=cp1; _;
y9
$"A  
dapybcf(iebc+1,1:jebc)=dap; Gb6'n$g  
  dbpybcf(iebc+1,1:jebc)=dbp; ]s'as9s9  
caeybcb(iebc+1,1:jebc)=ca1; O=t_yy  
cbeybcb(iebc+1,1:jebc)=cb1; RbnVL$c  
cpeybcb(iebc+1,1:jebc)=cp1; >Cp0.A:UC#  
dapybcb(iebc+1,1:jebc)=dap; +\]\[6  
  dbpybcb(iebc+1,1:jebc)=dbp; t{9GVLZ  
for i=1:iebc v{4$D~I  
  x1=(iebc-i+1)*dx; K5h  
  x2=(iebc-i)*dx; oZgjQM$YP  
  sigmax=bcfactor*(x1^(orderbc+1)-x2^(orderbc+1)); c)85=T6*aA  
  sigmaxs=sigmax*(muz/(epsz*eps)); O0v}43J[  
  da1=exp(-sigmaxs*dt/muz); F/{!tx  
  db1=(1-da1)/(sigmaxs*dx); >]TWXmx/w  
  dahzxbcl(i,1:je)=da1; ?l{nk5,?-Y  
  dbhzxbcl(i,1:je)=db1; :3Ox~o  
0[(8  
  dahzxbcf(i,1:jebc)=da1; ;[DU%f  
  dbhzxbcf(i,1:jebc)=db1; 2F.;;A
b  
.p[ux vp  
  dahzxbcb(i,1:jebc)=da1; 6d}lw6L  
  dbhzxbcb(i,1:jebc)=db1; 8TKnL\aar  
}($5k]]clP  
  caexbcl(i,2:je)=capml; IEi^kJflU  
  cbexbcl(i,2:je)=cbpml; cV6D<,)  
  cpexbcl(i,2:je)=cppml; @S;'@VC  
   dapxbcl(i,2:je)=dap; tcI*a>  
  dbpxbcl(i,2:je)=dbp; =UQ3HQD  
  dahzybcl(i,1:je)=da; S%>]q s  
  dbhzybcl(i,1:je)=db; T!#GW/?  
   + &Eqk  
end .L~AL|2_  
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% f8dB-FlMm  
%     RIGHT region Zu[su>\  
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% wwZ,;\  
~<bZ1TD   
caeybcr(ibbc,1:je)=1.0;     %0.0%1.0; #c!lS<z  
cbeybcr(ibbc,1:je)=0.0; Qw*|qGvy^  
cpeybcr(ibbc,1:je)=0.0; 4+8@`f>s  
dapybcr(ibbc,1:je)=1.0; d7upz]K9g  
dbpybcr(ibbc,1:je)=0.0; bI1N@
=  
bcfactor=eps*sigmam/(dx*(delbc^orderbc)*(orderbc+1)); TD0 B%  
for i=2:iebc H7n>Vx:L-  
  x1=(i-0.5)*dx; ^nz.j  
  x2=(i-1.5)*dx; _B<X`L =  
  sigmax=bcfactor*(x1^(orderbc+1)-x2^(orderbc+1)); %tGO?JMkd  
   eaf1=dt*(sigmax+sigdisp)/(epsz*eps); wP@(?z  
  ca1=exp(-eaf1); kTgEd]^&D  
  cb1=(1.0-ca1)/((sigmax+sigdisp)*dx); oG\Vxg*  
  cp1=(1.0-ca1)/((sigmax+sigdisp)*tau0); n7[V&`e_  
  caeybcr(i,1:je)=ca1;  }my`K  
  cbeybcr(i,1:je)=cb1; ZY+qA  
  cpeybcr(i,1:je)=cp1; d#FQc18v}k  
   +r2-S~f3N  
    dapybcr(i,1:je)=dap; Jnov<+  
  dbpybcr(i,1:je)=dbp; q0vQa  
   lymCH  
  caeybcf(i+iebc+ie,1:jebc)=ca1; 73;GW4,  
  cbeybcf(i+iebc+ie,1:jebc)=cb1; g) jYFfGfH  
  cpeybcf(i+iebc+ie,1:jebc)=cp1; rEWb"  
   8lrpve  
    dapybcf(i+iebc+ie,1:jebc)=dap; Y$_B1_  
  dbpybcf(i+iebc+ie,1:jebc)=dbp; DTL.Bsc-.  
   0GeTSFj  
  caeybcb(i+iebc+ie,1:jebc)=ca1; DvvK^+-~  
  cbeybcb(i+iebc+ie,1:jebc)=cb1; #\m<Sz5Gp#  
  cpeybcb(i+iebc+ie,1:jebc)=cp1; /U9"wvg  
   f]CXu3w(J  
  dapybcb(i+iebc+ie,1:jebc)=dap; #"~<HG}bR/  
  dbpybcb(i+iebc+ie,1:jebc)=dbp;  qX{+oy5  
end Fx.=#bVX7  
sigmax=bcfactor*(0.5*dx)^(orderbc+1); YS0<qSN
  
eaf1=dt*(sigmay+sigdisp)/(epsz*eps); +mn[5Y}:  
  ca1=exp(-eaf1); UCjld  
  cb1=(1.0-ca1)/((sigmax+sigdisp)*dx); nNn:-  
  cp1=(1.0-ca1)/((sigmax+sigdisp)*tau0); Q![@c  
caey(ib,1:je)=ca1; "chDg(jMZ  
cbey(ib,1:je)=cb1; e\L8oOk#r  
cpey(ib,1:je)=cp1; 5rik7a)Z]  
dapy(ib,1:je)=dap; 6i/(5 nQ  
dbpy(ib,1:je)=dbp; 26h21Z16q  
?UoBV$  
caeybcf(iebc+ib,1:jebc)=ca1; rx|pOz,:  
cbeybcf(iebc+ib,1:jebc)=cb1; \4fQMG  
cpeybcf(iebc+ib,1:jebc)=cp1; ~4'$yWG  
dapybcf(iebc+ib,1:jebc)=dap; [4f{w%~^  
dbpybcf(iebc+ib,1:jebc)=dbp; 'H;*W|:-]  
&^jXEz;  
caeybcb(iebc+ib,1:jebc)=ca1; z2GY:<s  
cbeybcb(iebc+ib,1:jebc)=cb1; > ~O.@|  
cpeybcb(iebc+ib,1:jebc)=cp1; '`Hr}  
dapybcb(iebc+ib,1:jebc)=dap; JWxwJex  
dbpybcb(iebc+ib,1:jebc)=dbp; gPPkT"  
for i=1:iebc #ABZ&Z  
  x1=i*dx; +
I28|*K"  
  x2=(i-1)*dx; dy[X3jQB  
  sigmax=bcfactor*(x1^(orderbc+1)-x2^(orderbc+1)); lThB2/tV\  
  sigmaxs=sigmax*(muz/(epsz*eps)); nu%*'
.  
  da1=exp(-sigmaxs*dt/muz); 3Y$GsN4ln  
  db1=(1-da1)/(sigmaxs*dx); ckCE1e>s  
  dahzxbcr(i,1:je) = da1; D&y7-/  
  dbhzxbcr(i,1:je) = db1; |sE'XT4ag  
;2QP7PrSY  
  dahzxbcf(i+ie+iebc,1:jebc)=da1; y:uE3Apm  
  dbhzxbcf(i+ie+iebc,1:jebc)=db1; &};zvo~P.  
S f# R0SA  
  dahzxbcb(i+ie+iebc,1:jebc)=da1; eaU  
  dbhzxbcb(i+ie+iebc,1:jebc)=db1; @r1_U,0e  
   eHUOU>&P]  
   dapxbcb(i,2:je)=dap; kAUymds;O  
  dbpxbcb(i,2:je)=dbp; Mo|2}nf  
  caexbcr(i,2:je)=capml;   BI@[\aRLQ  
  cbexbcr(i,2:je)=cbpml;   Z%UP6%  
  cpexbcr(i,2:je)=cppml; 1'Dai`  
   [nq@mc~<  
  dahzybcr(i,1:je)=da;   pQB."[n  
  dbhzybcr(i,1:je)=db;   (ToUgVW1N  
   end ~k5W@`"W  
JxU5 fe  
%*********************************************************************** $F.a><1rY  
%     BEGIN TIME-STEPPING LOOP Nh+H9  
%*********************************************************************** iy.\=Cs$N  
for n=1:nmax fk-RV>yr  
J{G?-+`  
%*********************************************************************** C0Z=~Q%  
%     Update electric fields (EX and EY) in main grid F#E3q|Q"BS  
%*********************************************************************** dWBA1p  
ex(:,2:je)=caex(:,2:je).*ex(:,2:je)+... !&E-}}<  
           cbex(:,2:je).*(hz(:,2:je)-hz(:,1:je-1))+cpex(:,2:je).*px(:,2:je); \  Cj7k^  
_Fg5A7or  
ey(2:ie,:)=caey(2:ie,:).*ey(2:ie,:)+... 8&dF  
           cbey(2:ie,:).*(hz(1:ie-1,:)-hz(2:ie,:))+cpey(2:ie,:).*py(2:ie,:); 8z\xrY  
>H,*H;6  
%*********************************************************************** w0unS`\4  
%     Update EX in PML regions $*m-R*kt  
%*********************************************************************** B9S@(/"7  
qH_Dc=~la  
%     FRONT &K,i f  
Wd ELV3  
exbcf(:,2:jebc)=caexbcf(:,2:jebc).*exbcf(:,2:jebc)-...   COlaD"Y  
  cbexbcf(:,2:jebc).*(hzxbcf(:,1:jebc-1)+hzybcf(:,1:jebc-1)-... rytyw77t(  
                      hzxbcf(:,2:jebc)-hzybcf(:,2:jebc))+... S+lqA-:  
    cpexbcf(:,2:jebc).*pxbcf(:,2:jebc); .=; ;  
ex(1:ie,1)=caex(1:ie,1).*ex(1:ie,1)-... 6Kz,{F@  
  cbex(1:ie,1).*(hzxbcf(ibbc:iebc+ie,jebc)+... BMf@M  
                hzybcf(ibbc:iebc+ie,jebc)-hz(1:ie,1))+... tZo} ;|~'  
      cpex(1:ie,1).*px(1:ie,1); $ocdI
5  
7G],T++N  
%     BACK GC'O[q+  
X@F
N|Rdh  
exbcb(:,2:jebc-1)=caexbcb(:,2:jebc-1).*exbcb(:,2:jebc-1)-... \_fv7Fdp{  
  cbexbcb(:,2:jebc-1).*(hzxbcb(:,1:jebc-2)+hzybcb(:,1:jebc-2)-... _)-o1`*-  
                        hzxbcb(:,2:jebc-1)-hzybcb(:,2:jebc-1))+... _@/8gPT*i  
   cpexbcb(:,2:jebc-1).*pxbcb(:,2:jebc-1); *VN6cSq  
ex(1:ie,jb)=caex(1:ie,jb).*ex(1:ie,jb)-... Flb&B1  
  cbex(1:ie,jb).*(hz(1:ie,jb-1)-hzxbcb(ibbc:iebc+ie,1)-... ],].zlN  
                 hzybcb(ibbc:iebc+ie,1))+... pfI&E#:5  
                 cpex(1:ie,jb).*px(1:ie,jb); /Z4et'Lo  
8q7
b_Pq1U  
%     LEFT O#r%>;3*  
;dhQN}7  
exbcl(:,2:je)=caexbcl(:,2:je).*exbcl(:,2:je)-... BJ(M2|VH  
  cbexbcl(:,2:je).*(hzxbcl(:,1:je-1)+hzybcl(:,1:je-1)-... Wc 'H  
                    hzxbcl(:,2:je)-hzybcl(:,2:je))+... }<:}XlwT%  
                    cpexbcl(:,2:je).*pxbcl(:,2:je); 93hxSRw  
exbcl(:,1)=caexbcl(:,1).*exbcl(:,1)-... 7 X4LJf  
  cbexbcl(:,1).*(hzxbcf(1:iebc,jebc)+hzybcf(1:iebc,jebc)-... f
%hEnZv  
                 hzxbcl(:,1)-hzybcl(:,1))+cpexbcl(:,1).*pxbcl(:,1); \l3h0R  
exbcl(:,jb)=caexbcl(:,jb).*exbcl(:,jb)-... C7AUsYM  
  cbexbcl(:,jb).*(hzxbcl(:,je)+hzybcl(:,je)-... -s/ea~=R  
                  hzxbcb(1:iebc,1)-hzybcb(1:iebc,1))+...  9gZ$
 
          cpexbcl(:,jb).*pxbcl(:,je); tq?!-x+>  
FVBYo%Ap  
%     RIGHT +"VP-s0  
>(RkZ}z  
exbcr(:,2:je)=caexbcr(:,2:je).*exbcr(:,2:je)-... |wj?ed$ f  
  cbexbcr(:,2:je).*(hzxbcr(:,1:je-1)+hzybcr(:,1:je-1)-... RG`1en  
                    hzxbcr(:,2:je)-hzybcr(:,2:je))+... U m+8"W  
       cpexbcr(:,2:je).*pxbcr(:,2:je); Gs[XJ 5%`~  
exbcr(:,1)=caexbcr(:,1).*exbcr(:,1)-... bZV
/l4TU  
  cbexbcr(:,1).*(hzxbcf(1+iebc+ie:iefbc,jebc)+... QmIBaMI#  
                 hzybcf(1+iebc+ie:iefbc,jebc)-... 9&NgtZpt  
                 hzxbcr(:,1)-hzybcr(:,1))+cpexbcr(:,1).*pxbcr(:,1); 0m ? )ROaJ  
exbcr(:,jb)=caexbcr(:,jb).*exbcr(:,jb)-... vvOV2n.WD  
  cbexbcr(:,jb).*(hzxbcr(:,je)+hzybcr(:,je)-... Tm?#M&'  
                  hzxbcb(1+iebc+ie:iefbc,1)-... I2Yz#V<%ru  
                  hzybcb(1+iebc+ie:iefbc,1))+cpexbcr(:,jb).*pxbcr(:,jb); T
[j,UkgGo  
@lph)A Nk  
%*********************************************************************** 5kXYeP3:  
%     Update EY in PML regions ?bu>r=oIO]  
%*********************************************************************** Ga'swP=hf  
Wm5dk9&x  
%     FRONT [ikOb8 G#  
HpnWoDM  
eybcf(2:iefbc,:)=caeybcf(2:iefbc,:).*eybcf(2:iefbc,:)-... >o,TZc\  
  cbeybcf(2:iefbc,:).*(hzxbcf(2:iefbc,:)+hzybcf(2:iefbc,:)-... Y6d@h? ht  
                       hzxbcf(1:iefbc-1,:)-hzybcf(1:iefbc-1,:))+... vr^qWn  
       cpeybcf(2:iefbc,:).*pybcf(2:iefbc,:); {VoHh_[5%  
40 0#v|b  
%     BACK Y nZiTe@  
as=LIw}Q4  
eybcb(2:iefbc,:)=caeybcb(2:iefbc,:).*eybcb(2:iefbc,:)-... n'w.; q  
  cbeybcb(2:iefbc,:).*(hzxbcb(2:iefbc,:)+hzybcb(2:iefbc,:)-... PFK  '$  
                       hzxbcb(1:iefbc-1,:)-hzybcb(1:iefbc-1,:))+... |^H5^k "Bv  
       cpeybcb(2:iefbc,:).*pybcb(2:iefbc,:); CJI~_3+K  
uW3!Yg@  
%     LEFT po7qmLq  
ete.!*=  
eybcl(2:iebc,:)=caeybcl(2:iebc,:).*eybcl(2:iebc,:)-... >F&47Yn  
  cbeybcl(2:iebc,:).*(hzxbcl(2:iebc,:)+hzybcl(2:iebc,:)-... 4E?Oky#}-  
                      hzxbcl(1:iebc-1,:)-hzybcl(1:iebc-1,:))+... h)nG)|c  
     cpeybcl(2:iebc,:).*pybcl(2:iebc,:); @\I#^X5lv  
ey(1,:)=caey(1,:).*ey(1,:)-... pD]
OT-8  
  cbey(1,:).*(hz(1,:)-hzxbcl(iebc,:)-hzybcl(iebc,:))+cpey(1,:).*py(1,:); 0
SPk|kr  
POR\e|hRT]  
%     RIGHT *uvQ\.  
~e.L.,4QZ8  
eybcr(2:iebc,:)=caeybcr(2:iebc,:).*eybcr(2:iebc,:)-... `y* }lg T  
  cbeybcr(2:iebc,:).*(hzxbcr(2:iebc,:)+hzybcr(2:iebc,:)-...
G*v,GR  
                      hzxbcr(1:iebc-1,:)-hzybcr(1:iebc-1,:))+... >lM l  
    cpeybcr(2:iebc,:).*pybcr(2:iebc,:); wec)Ctj+  
ey(ib,:)=caey(ib,:).*ey(ib,:)-... 8HdAFRw  
  cbey(ib,:).*(hzxbcr(1,:)+hzybcr(1,:)- hz(ie,:))+... ~F7gP{r  
  cpey(ib,:).*py(ib,:); N,U8YO  
2GStN74Xr  
sn>~O4"  
%*********************************************************************** 8-6L|#J#  
%     Update magnetic fields (HZ) in main grid {FTqu.  
%*********************************************************************** <rSF*  
HUOj0T  
% for dispersion consideration P equation (32) 1995 IEEE tran. antennas and /H+a0`/  
% Propagation Vol.43 No. 4, pp422 (Jeffrey L. Young) ~^b/(  
px(:,2:je)=dapx(:,2:je).*px(:,2:je)+... L&OwPd  
          dbpx(:,2:je).*ex(:,2:je); N)>ID(}F1  
+d-NL?c  
py(2:ie,:)=dapy(2:ie,:).*py(2:ie,:)+... n{SJ_S#a.a  
        dbpy(2:ie,:).*ey(2:ie,:); ;6hOx(>`=  
[PKR2UEe]  
CVR3 A'  
hz(1:ie,1:je)=dahz(1:ie,1:je).*hz(1:ie,1:je)+... ei5~&  
              dbhz(1:ie,1:je).*(ex(1:ie,2:jb)-ex(1:ie,1:je)+... !5?<% *  
                                ey(1:ie,1:je)-ey(2:ib,1:je)); h`.&f  
o%*xvH*A  
hz(imp_x,imp_y)=source(n);    %(imp_x ,imp_y) are the location of the point source k-""_WJ~^  
c6/=Gq
{.  
%hz(imp_x,imp_y+25)=source(n); *HB-QIl  
7T'B6`-Ox  
%*********************************************************************** uUw5l})%Fi  
%     Update HZX ,px in PML regions j1HW._G  
%*********************************************************************** .w,q0<}  
>i-"<&#jG  
%     FRONT S#[j )U-  
kz7(Z'pw  
v74&BL]a
 
pxbcf(:,2:jebc)=dapxbcf(:,2:jebc).*pxbcf(:,2:jebc)+... '$QB$2~V  
    dbpxbcf(:,2:jebc).*exbcf(:,2:jebc); -s'-eQF J  
px(1:ie,1)=dapx(1:ie,1).*px(1:ie,1)+... @AuO`I@p=  
     dbpx(1:ie,1).*ex(1:ie,1); ?b5^  
8sK9G` k  
hzxbcf(1:iefbc,:)=dahzxbcf(1:iefbc,:).*hzxbcf(1:iefbc,:)-... PE5G  
  dbhzxbcf(1:iefbc,:).*(eybcf(2:ibfbc,:)-eybcf(1:iefbc,:)); ;IM}|2zuN  
RY*U"G0#w  
%     BACK EAby?51+  
pxbcb(:,2:jebc-1)=dapxbcb(:,2:jebc-1).*pxbcb(:,2:jebc-1)+... #yvGK:F  
   dbpxbcb(:,2:jebc-1).*exbcb(:,2:jebc-1); cPc</[x[W  
px(1:ie,jb)=dapx(1:ie,jb).*px(1:ie,jb)+... ,3 u}x,  
                 dbpx(1:ie,jb).*ex(1:ie,jb); 5+ MS^H  
   ?@ $r  
hzxbcb(1:iefbc,:)=dahzxbcb(1:iefbc,:).*hzxbcb(1:iefbc,:)-... ~.lPEA %%  
  dbhzxbcb(1:iefbc,:).*(eybcb(2:ibfbc,:)-eybcb(1:iefbc,:)); y$R_.KbO  
h3@v+Z<}  
%     LEFT ;P&OX5~V  
0'o:#-  
pxbcl(:,2:je)=dapxbcl(:,2:je).*pxbcl(:,2:je)+... w.-!UD9/.x  
                    dbpxbcl(:,2:je).*exbcl(:,2:je); *G9V'9  
pxbcl(:,1)=dapxbcl(:,1).*pxbcl(:,1)+dbpxbcl(:,1).*exbcl(:,1); uhutg,[  
pxbcl(:,jb)=dapxbcl(:,jb).*pxbcl(:,jb)+dbpxbcl(:,jb).*exbcl(:,je); jOD?|tK&  
"Os_vlapHo  
hzxbcl(1:iebc-1,:)=dahzxbcl(1:iebc-1,:).*hzxbcl(1:iebc-1,:)-... $a ` G  
  dbhzxbcl(1:iebc-1,:).*(eybcl(2:iebc,:)-eybcl(1:iebc-1,:)); u,Kly<0j  
hzxbcl(iebc,:)=dahzxbcl(iebc,:).*hzxbcl(iebc,:)-... SOvF[,+  
  dbhzxbcl(iebc,:).*(ey(1,:)-eybcl(iebc,:)); u08mqEa  
Lbb0_-']  
%     RIGHT >~+ELVB&  
pxbcr(:,2:je)=dapxbcr(:,2:je).*pxbcr(:,2:je)+dbpxbcr(:,2:je).*exbcr(:,2:je); Ef13Q]9|  
pxbcr(:,1)=dapxbcr(:,1).*pxbcr(:,1)+dbpxbcr(:,1).*exbcr(:,1); 8|58 H  
pxbcr(:,jb)=dapxbcr(:,jb).*pxbcr(:,jb)+dbpxbcr(:,jb).*exbcr(:,jb); Hg (Gl  
VTHH&$ZNq  
hzxbcr(2:iebc,:)=dahzxbcr(2:iebc,:).*hzxbcr(2:iebc,:)-... -1ub^f
eJ,  
  dbhzxbcr(2:iebc,:).*(eybcr(3:ibbc,:)-eybcr(2:iebc,:)); g95`.V}  
hzxbcr(1,:)=dahzxbcr(1,:).*hzxbcr(1,:)-... |)/aGZ+  
  dbhzxbcr(1,:).*(eybcr(2,:)-ey(ib,:)); U_c
*6CK  
KdbHyg<4  
%*********************************************************************** IRqy%@)  
%     Update HZY ,py in PML regions t#eTV@-
 
%***************************************************** .. 0Pi:N{x8  
6Sn.I1Wy  

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程序是按照论文编写的，现在才发现跟taflove的书有些不一样，论文理解也有些问题