92 lines
3.0 KiB
Matlab
92 lines
3.0 KiB
Matlab
close all
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clear
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clc
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%% setup the simulation %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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abs_length = 250;
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length = 1000;
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width = 500;
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height = 250;
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MSL_width = 50;
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MSL_height = 10;
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mesh_res = [5 5 10];
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EPS0 = 8.85418781762e-12;
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MUE0 = 1.256637062e-6;
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%% define openEMS options %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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openEMS_opts = '';
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% openEMS_opts = [openEMS_opts ' --disable-dumps'];
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% openEMS_opts = [openEMS_opts ' --debug-material'];
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Sim_Path = 'tmp';
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Sim_CSX = 'msl.xml';
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mkdir(Sim_Path);
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%% setup FDTD parameter & excitation function %%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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FDTD = InitFDTD(5e5,1e-6);
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FDTD = SetGaussExcite(FDTD,0.5e9,0.5e9);
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BC = [1 1 0 1 0 0];
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FDTD = SetBoundaryCond(FDTD,BC);
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%% setup CSXCAD geometry & mesh %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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CSX = InitCSX();
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mesh.x = -width/2 : mesh_res(1) : width/2;
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mesh.y = [linspace(0,MSL_height,11) MSL_height+1 MSL_height+3 MSL_height+mesh_res(2):mesh_res(2):height];
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mesh.z = 0 : mesh_res(3) : length;
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CSX = DefineRectGrid(CSX, 1e-3,mesh);
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%%% MSL
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CSX = AddMaterial(CSX,'copper');
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CSX = SetMaterialProperty(CSX,'copper','Kappa',56e6);
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start = [-0.5*MSL_width, MSL_height , 0];stop = [0.5*MSL_width, MSL_height+1 , length];
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CSX = AddBox(CSX,'copper',0 ,start,stop);
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start = [-0.5*MSL_width, 0 , 0];stop = [0.5*MSL_width, MSL_height , mesh_res(1)/2];
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CSX = AddExcitation(CSX,'excite',0,[0 -1 0]);
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CSX = AddBox(CSX,'excite',0 ,start,stop);
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%% fake pml %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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finalKappa = 0.3/abs_length^4;
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finalSigma = finalKappa*MUE0/EPS0;
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CSX = AddMaterial(CSX,'pml');
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CSX = SetMaterialProperty(CSX,'pml','Kappa',finalKappa);
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CSX = SetMaterialProperty(CSX,'pml','Sigma',finalSigma);
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CSX = SetMaterialWeight(CSX,'pml','Kappa',['pow(abs(z)-' num2str(length-abs_length) ',4)']);
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CSX = SetMaterialWeight(CSX,'pml','Sigma',['pow(abs(z)-' num2str(length-abs_length) ',4)']);
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start = [mesh.x(1) mesh.y(1) length-abs_length];
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stop = [mesh.x(end) mesh.y(end) length];
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CSX = AddBox(CSX,'pml',0 ,start,stop);
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%% define dump boxes... %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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CSX = AddDump(CSX,'Et_','DumpMode',2);
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start = [mesh.x(1) , MSL_height/2 , mesh.z(1)];
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stop = [mesh.x(end) , MSL_height/2 , mesh.z(end)];
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CSX = AddBox(CSX,'Et_',0 , start,stop);
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CSX = AddDump(CSX,'Ht_','DumpType',1,'DumpMode',2);
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CSX = AddBox(CSX,'Ht_',0,start,stop);
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%% define voltage calc boxes %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%voltage calc
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CSX = AddProbe(CSX,'ut1',0);
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start = [ 0 MSL_height length/2 ];stop = [ 0 0 length/2 ];
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CSX = AddBox(CSX,'ut1', 0 ,start,stop);
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%current calc
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CSX = AddProbe(CSX,'it1',1);
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start = [ -MSL_width MSL_height/2 length/2 ];stop = [ MSL_width MSL_height*1.5 length/2 ];
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CSX = AddBox(CSX,'it1', 0 ,start,stop);
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%% Write openEMS compatoble xml-file %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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WriteOpenEMS([Sim_Path '/' Sim_CSX],FDTD,CSX);
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%% cd to working dir and run openEMS %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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savePath = pwd();
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cd(Sim_Path); %cd to working dir
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args = [Sim_CSX ' ' openEMS_opts];
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invoke_openEMS(args);
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cd(savePath);
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