matlab: update tutorials and examples

matlab/DumpFF2VTK.m

@@ -24,7 +24,7 @@ function DumpFF2VTK2(filename, farfield, thetaRange, phiRange, varargin)
 %
 %       see also examples/NF2FF/infDipol.m
 %
-% See also CreateNF2FFBox, AnalyzeNF2FF
+% See also CreateNF2FFBox, CalcNF2FF
 % 
 % openEMS matlab interface
 % -----------------------

matlab/Tutorials/Conical_Horn_Antenna.m

@@ -179,19 +179,8 @@ thetaRange = sort( unique([ 0:1:50 50:2.:100 100:5:180 ]));
 disp( 'calculating 3D far field...' );
 nf2ff = CalcNF2FF(nf2ff, Sim_Path, f0, thetaRange*pi/180, phiRange*pi/180, 'Verbose',2,'Outfile','nf2ff_3D.h5');
 
-E_far_normalized = nf2ff.E_norm{1} / max(nf2ff.E_norm{1}(:)) * nf2ff.Dmax;
-
-[theta,phi] = ndgrid(thetaRange/180*pi,phiRange/180*pi);
-x = E_far_normalized .* sin(theta) .* cos(phi);
-y = E_far_normalized .* sin(theta) .* sin(phi);
-z = E_far_normalized .* cos(theta);
 figure
-surf( x,y,z, E_far_normalized, 'EdgeColor','none' );
+plotFF3D(nf2ff);        % plot liear 3D far field
-axis equal
-axis off
-xlabel( 'x' );
-ylabel( 'y' );
-zlabel( 'z' );
 
 %%
 DumpFF2VTK([Sim_Path '/Conical_Horn_Pattern.vtk'],E_far_normalized,thetaRange,phiRange,'scale',1e-3);

matlab/Tutorials/Horn_Antenna.m

@@ -198,19 +198,8 @@ thetaRange = sort( unique([ 0:1:50 50:2.:100 100:5:180 ]));
 disp( 'calculating 3D far field...' );
 nf2ff = CalcNF2FF(nf2ff, Sim_Path, f0, thetaRange*pi/180, phiRange*pi/180, 'Verbose',2,'Outfile','nf2ff_3D.h5');
 
-E_far_normalized = nf2ff.E_norm{1} / max(nf2ff.E_norm{1}(:)) * nf2ff.Dmax;
-
-[theta,phi] = ndgrid(thetaRange/180*pi,phiRange/180*pi);
-x = E_far_normalized .* sin(theta) .* cos(phi);
-y = E_far_normalized .* sin(theta) .* sin(phi);
-z = E_far_normalized .* cos(theta);
 figure
-surf( x,y,z, E_far_normalized, 'EdgeColor','none' );
+plotFF3D(nf2ff);
-axis equal
-axis off
-xlabel( 'x' );
-ylabel( 'y' );
-zlabel( 'z' );
 
 %%
 DumpFF2VTK([Sim_Path '/Horn_Pattern.vtk'],E_far_normalized,thetaRange,phiRange,'scale',1e-3);

matlab/Tutorials/Simple_Patch_Antenna.m

@@ -41,7 +41,7 @@ SimBox = [200 200 150];
 %% setup FDTD parameter & excitation function
 f0 = 2e9; % center frequency
 fc = 1e9; % 20 dB corner frequency
-FDTD = InitFDTD( 30000 );
+FDTD = InitFDTD( 'NrTs', 30000 );
 FDTD = SetGaussExcite( FDTD, f0, fc );
 BC = {'MUR' 'MUR' 'MUR' 'MUR' 'MUR' 'MUR'}; % boundary conditions
 FDTD = SetBoundaryCond( FDTD, BC );
@@ -154,25 +154,21 @@ disp( ['directivity: Dmax = ' num2str(nf2ff.Dmax) ' (' num2str(10*log10(nf2ff.Dm
 disp( ['efficiency: nu_rad = ' num2str(100*nf2ff.Prad./real(P_in(f_res_ind))) ' %']);
 
 % normalized directivity
-D_log = 20*log10(nf2ff.E_norm{1}/max(max(nf2ff.E_norm{1})));
-% directivity
-D_log = D_log + 10*log10(nf2ff.Dmax);
-
-%% display polar plot
 figure
-plot( nf2ff.theta, D_log(:,1) ,'k-' );
+plotFFdB(nf2ff,'xaxis','theta','param',[1 2])
-xlabel( 'theta (deg)' );
+%   D_log = 20*log10(nf2ff.E_norm{1}/max(max(nf2ff.E_norm{1})));
-ylabel( 'directivity (dBi)');
+%   D_log = D_log + 10*log10(nf2ff.Dmax);
-grid on;
+%   plot( nf2ff.theta, D_log(:,1) ,'k-' );
-hold on;
+
-plot( nf2ff.theta, D_log(:,2) ,'r-' );
-legend('phi=0','phi=90')
 
 %%
 disp( 'calculating 3D far field pattern and dumping to vtk (use Paraview to visualize)...' );
 thetaRange = (0:2:180);
 phiRange = (0:2:360) - 180;
 nf2ff = CalcNF2FF(nf2ff, Sim_Path, f_res, thetaRange*pi/180, phiRange*pi/180,'Verbose',1,'Outfile','3D_Pattern.h5');
+figure
+plotFF3D(nf2ff);
+
 
 E_far_normalized = nf2ff.E_norm{1} / max(nf2ff.E_norm{1}(:)) * nf2ff.Dmax;
 DumpFF2VTK([Sim_Path '/3D_Pattern.vtk'],E_far_normalized,thetaRange,phiRange,'scale',1e-3);

matlab/examples/antennas/Patch_Antenna.m

@@ -59,7 +59,7 @@ max_timesteps = 30000;
 min_decrement = 1e-5; % equivalent to -50 dB
 f0 = 0e9; % center frequency
 fc = 3e9; % 20 dB corner frequency (in this case 0 Hz - 3e9 Hz)
-FDTD = InitFDTD( max_timesteps, min_decrement );
+FDTD = InitFDTD( 'NrTS', max_timesteps, 'EndCriteria', min_decrement );
 FDTD = SetGaussExcite( FDTD, f0, fc );
 BC = {'MUR' 'MUR' 'MUR' 'MUR' 'MUR' 'MUR'}; % boundary conditions
 if (use_pml>0)
@@ -106,7 +106,7 @@ CSX = AddBox(CSX,'gnd',10,start,stop);
 %% apply the excitation & resist as a current source
 start = [feed.pos-.1 -feed.width/2 0];
 stop  = [feed.pos+.1 +feed.width/2 substrate.thickness];
-[CSX] = AddLumpedPort(CSX, 5 ,1 ,feed.R, start, stop, [0 0 1], 'excite');
+[CSX] = AddLumpedPort(CSX, 5 ,1 ,feed.R, start, stop, [0 0 1], true);
 
 %% dump magnetic field over the patch antenna
 CSX = AddDump( CSX, 'Ht_', 'DumpType', 1, 'DumpMode', 2); % cell interpolated
@@ -184,69 +184,33 @@ f_res = freq(f_res_ind);
 
 % calculate the far field at phi=0 degrees and at phi=90 degrees
 thetaRange = (0:2:359) - 180;
-r = 1; % evaluate fields at radius r
+phiRange = [0 90];
 disp( 'calculating far field at phi=[0 90] deg...' );
-[E_far_theta,E_far_phi,Prad,Dmax] = AnalyzeNF2FF( Sim_Path, nf2ff, f_res, thetaRange, [0 90], r );
+nf2ff = CalcNF2FF(nf2ff, Sim_Path, f_res, thetaRange*pi/180, phiRange*pi/180);
 
-Dlog=10*log10(Dmax);
+Dlog=10*log10(nf2ff.Dmax);
 
 % display power and directivity
-disp( ['radiated power: Prad = ' num2str(Prad) ' Watt']);
+disp( ['radiated power: Prad = ' num2str(nf2ff.Prad) ' Watt']);
 disp( ['directivity: Dmax = ' num2str(Dlog) ' dBi'] );
-disp( ['efficiency: nu_rad = ' num2str(100*Prad./real(P_in(f_res_ind))) ' %']);
+disp( ['efficiency: nu_rad = ' num2str(100*nf2ff.Prad./real(P_in(f_res_ind))) ' %']);
 
-% calculate the e-field magnitude for phi = 0 deg
+% display phi
-E_phi0_far = zeros(1,numel(thetaRange));
-for n=1:numel(thetaRange)
-    E_phi0_far(n) = norm( [E_far_theta(n,1) E_far_phi(n,1)] );
-end
-
-E_phi0_far_log = 20*log10(abs(E_phi0_far)/max(abs(E_phi0_far)));
-E_phi0_far_log = E_phi0_far_log + Dlog;
-
-% display polar plot
 figure
-plot( thetaRange, E_phi0_far_log ,'k-' );
+plotFFdB(nf2ff,'xaxis','theta','param',[1 2]);
-xlabel( 'theta (deg)' );
+drawnow
-ylabel( 'directivity (dBi)');
-grid on;
-hold on;
-
-% calculate the e-field magnitude for phi = 90 deg
-E_phi90_far = zeros(1,numel(thetaRange));
-for n=1:numel(thetaRange)
-    E_phi90_far(n) = norm([E_far_theta(n,2) E_far_phi(n,2)]);
-end
-
-E_phi90_far_log = 20*log10(abs(E_phi90_far)/max(abs(E_phi90_far)));
-E_phi90_far_log = E_phi90_far_log + Dlog;
-
-% display polar plot
-plot( thetaRange, E_phi90_far_log ,'r-' );
-legend('phi=0','phi=90')
 
 if (draw_3d_pattern==0)
     return
 end
-%% calculate 3D pattern
-phiRange = 0:15:360;
-thetaRange = 0:10:180;
-r = 1; % evaluate fields at radius r
-disp( 'calculating 3D far field...' );
-[E_far_theta,E_far_phi] = AnalyzeNF2FF( Sim_Path, nf2ff, f_res, thetaRange, phiRange, r );
-E_far = sqrt( abs(E_far_theta).^2 + abs(E_far_phi).^2 );
-E_far_normalized = E_far / max(E_far(:)) * Dmax;
 
-[theta,phi] = ndgrid(thetaRange/180*pi,phiRange/180*pi);
+%% calculate 3D pattern
-x = E_far_normalized .* sin(theta) .* cos(phi);
+phiRange = 0:2:360;
-y = E_far_normalized .* sin(theta) .* sin(phi);
+thetaRange = 0:2:180;
-z = E_far_normalized .* cos(theta);
+disp( 'calculating 3D far field...' );
+nf2ff = CalcNF2FF(nf2ff, Sim_Path, f_res, thetaRange*pi/180, phiRange*pi/180, 'Verbose',2,'Outfile','nf2ff_3D.h5');
 figure
-surf( x,y,z, E_far_normalized );
+plotFF3D(nf2ff);
-axis equal
-xlabel( 'x' );
-ylabel( 'y' );
-zlabel( 'z' );
 
 
 %% visualize magnetic fields

matlab/examples/antennas/Patch_Antenna_Array.m

@@ -65,7 +65,7 @@ max_timesteps = 30000;
 min_decrement = 1e-5; % equivalent to -50 dB
 f0 = 0e9; % center frequency
 fc = 3e9; % 10 dB corner frequency (in this case 0 Hz - 3e9 Hz)
-FDTD = InitFDTD( max_timesteps, min_decrement );
+FDTD = InitFDTD( 'NrTS', max_timesteps, 'EndCriteria', min_decrement );
 FDTD = SetGaussExcite( FDTD, f0, fc );
 BC = {'MUR' 'MUR' 'MUR' 'MUR' 'MUR' 'MUR'}; % boundary conditions
 if (use_pml>0)
@@ -133,7 +133,7 @@ for xn=1:array.xn
         % apply the excitation & resist as a current source
         start = [midX+feed.pos-feed.width/2 midY-feed.width/2 0];
         stop  = [midX+feed.pos+feed.width/2 midY+feed.width/2 substrate.thickness];
-        [CSX] = AddLumpedPort(CSX, 5, number,feed.R, start, stop,[0 0 1],['excite_' int2str(xn) '_' int2str(yn)]);
+        [CSX] = AddLumpedPort(CSX, 5, number,feed.R, start, stop,[0 0 1],true);
         number=number+1;
     end
 end
@@ -221,74 +221,35 @@ f_res = freq(f_res_ind);
 
 % calculate the far field at phi=0 degrees and at phi=90 degrees
 thetaRange = (0:2:359) - 180;
+phiRange = [0 90];
 r = 1; % evaluate fields at radius r
 disp( 'calculating far field at phi=[0 90] deg...' );
-[E_far_theta,E_far_phi,Prad,Dmax] = AnalyzeNF2FF( Sim_Path, nf2ff, f_res, thetaRange, [0 90], r );
 
-Dlog=10*log10(Dmax);
+nf2ff = CalcNF2FF(nf2ff, Sim_Path, f_res, thetaRange*pi/180, phiRange*pi/180);
+
+Dlog=10*log10(nf2ff.Dmax);
 
 % display power and directivity
-disp( ['radiated power: Prad = ' num2str(Prad) ' Watt']);
+disp( ['radiated power: Prad = ' num2str(nf2ff.Prad) ' Watt']);
 disp( ['directivity: Dmax = ' num2str(Dlog) ' dBi'] );
-disp( ['efficiency: nu_rad = ' num2str(100*Prad./real(P_in(f_res_ind))) ' %']);
+disp( ['efficiency: nu_rad = ' num2str(100*nf2ff.Prad./real(P_in(f_res_ind))) ' %']);
 
-% calculate the e-field magnitude for phi = 0 deg
+% display phi
-E_phi0_far = zeros(1,numel(thetaRange));
-for n=1:numel(thetaRange)
-    E_phi0_far(n) = norm( [E_far_theta(n,1) E_far_phi(n,1)] );
-end
-
-E_phi0_far_log = 20*log10(abs(E_phi0_far)/max(abs(E_phi0_far)));
-E_phi0_far_log = E_phi0_far_log + Dlog;
-
-% display radiation pattern
 figure
-plot( thetaRange, E_phi0_far_log ,'k-' );
+plotFFdB(nf2ff,'xaxis','theta','param',[1 2]);
-xlabel( 'theta (deg)' );
-ylabel( 'directivity (dBi)');
-grid on;
-hold on;
-
-% calculate the e-field magnitude for phi = 90 deg
-E_phi90_far = zeros(1,numel(thetaRange));
-for n=1:numel(thetaRange)
-    E_phi90_far(n) = norm([E_far_theta(n,2) E_far_phi(n,2)]);
-end
-
-E_phi90_far_log = 20*log10(abs(E_phi90_far)/max(abs(E_phi90_far)));
-E_phi90_far_log = E_phi90_far_log + Dlog;
-
-plot( thetaRange, E_phi90_far_log ,'r-' );
-legend('phi=0','phi=90')
-
 drawnow
 
 if (draw_3d_pattern==0)
     return
 end
+
 %% calculate 3D pattern
-tic
 phiRange = 0:3:360;
 thetaRange = unique([0:0.5:15 10:3:180]);
-r = 1; % evaluate fields at radius r
 disp( 'calculating 3D far field...' );
-[E_far_theta,E_far_phi] = AnalyzeNF2FF( Sim_Path, nf2ff, f_res, thetaRange, phiRange, r );
+nf2ff = CalcNF2FF(nf2ff, Sim_Path, f_res, thetaRange*pi/180, phiRange*pi/180, 'Verbose',2,'Outfile','nf2ff_3D.h5');
-E_far = sqrt( abs(E_far_theta).^2 + abs(E_far_phi).^2 );
-
-E_far_normalized = E_far / max(E_far(:)) * Dmax;
-[theta,phi] = ndgrid(thetaRange/180*pi,phiRange/180*pi);
-x = E_far_normalized .* sin(theta) .* cos(phi);
-y = E_far_normalized .* sin(theta) .* sin(phi);
-z = E_far_normalized .* cos(theta);
-
-%%
 figure
-surf( x,y,z, E_far_normalized );
+plotFF3D(nf2ff);
-axis equal
-xlabel( 'x' );
-ylabel( 'y' );
-zlabel( 'z' );
-toc
 
 %% visualize magnetic fields
 % you will find vtk dump files in the simulation folder (tmp/)

matlab/examples/antennas/infDipol.m

@@ -111,7 +111,6 @@ legend( 'e-field magnitude', 'Location', 'BestOutside' );
 %% calculate the far field at theta=90 degrees
 phiRange = 0:2:359;
 disp( 'calculating far field at theta=90 deg..' );
-%[E_far_theta,E_far_phi] = AnalyzeNF2FF( Sim_Path, nf2ff, f_max, 90, phiRange, 1 );
 nf2ff = CalcNF2FF( nf2ff, Sim_Path, f_max, 90, phiRange/180*pi, 'Mode', 1 );
 Prad = nf2ff.Prad;
 Dmax = nf2ff.Dmax;
@@ -129,19 +128,8 @@ phiRange = 0:5:360;
 thetaRange = 0:5:180;
 disp( 'calculating 3D far field...' );
 nf2ff = CalcNF2FF( nf2ff, Sim_Path, f_max, thetaRange/180*pi, phiRange/180*pi, 'Mode', 1 );
-
-E_far = nf2ff.E_norm{1};
-E_far_normalized = E_far / max(E_far(:));
-[theta,phi] = ndgrid(thetaRange/180*pi,phiRange/180*pi);
-x = E_far_normalized .* sin(theta) .* cos(phi);
-y = E_far_normalized .* sin(theta) .* sin(phi);
-z = E_far_normalized .* cos(theta);
 figure
-surf( x,y,z, E_far_normalized );
+plotFF3D(nf2ff)
-axis equal
-xlabel( 'x' );
-ylabel( 'y' );
-zlabel( 'z' );
 
 %%
 DumpFF2VTK([Sim_Path '/FF_pattern.vtk'],E_far_normalized, thetaRange,  phiRange);