filterui.m

The Finite Difference Time Domain Method for Electromagnetics With MATLAB Simulations Atef Elshe

function varargout = FilterUI(varargin)
% FilterUI M-file for FilterUI.fig
%      FilterUI, by itself, creates a new FilterUI or raises the existing
%      singleton*.
%
%      H = FilterUI returns the handle to a new FilterUI or the handle to
%      the existing singleton*.
%
%      FilterUI('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in FilterUI.M with the given input arguments.
%
%      FilterUI('Property','Value',...) creates a new FilterUI or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before FilterUI_OpeningFcn gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to FilterUI_OpeningFcn via varargin.
%
%      *See GUI Options on GUIDE's Tools menu.  Choose "GUI allows only one
%      instance to run (singleton)".
%
% See also: GUIDE, GUIDATA, GUIHANDLES

% Edit the above text to modify the response to help FilterUI

% Last Modified by GUIDE v2.5 30-Apr-2008 13:45:11

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @FilterUI_OpeningFcn, ...
                   'gui_OutputFcn',  @FilterUI_OutputFcn, ...
                   'gui_LayoutFcn',  [] , ...
                   'gui_Callback',   []);
if nargin && ischar(varargin{1})
    gui_State.gui_Callback = str2func(varargin{1});
end

if nargout
    [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
else
    gui_mainfcn(gui_State, varargin{:});
end
% End initialization code - DO NOT EDIT

% --- Executes just before FilterUI is made visible.
function FilterUI_OpeningFcn(hObject, eventdata, handles, varargin)
% This function has no output args, see OutputFcn.
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
% varargin   command line arguments to FilterUI (see VARARGIN)

% Choose default command line output for FilterUI
handles.output = hObject;

% Update handles structure
guidata(hObject, handles);

% This sets up the initial plot - only do when we are invisible
% so window can get raised using FilterUI.
    global A B C D E F G ts dx dy dz er fftstart fftstop
    fftstart=0.1;
    fftstop=20;
    A=6;
    B=13;
    C=6;
    D=10;
    E=6;
    F=13;
    G=3;
    ts=2000;
    dx=0.4233;
    dy=0.4064;
    dz=0.265;
    er=2.2;
    axes(handles.axes4);
    rgb=imread('Filter.jpg');
    image(rgb);
    axis off;
    setspace;
    



% UIWAIT makes FilterUI wait for user response (see UIRESUME)
% uiwait(handles.figure1);


% --- Outputs from this function are returned to the command line.
function varargout = FilterUI_OutputFcn(hObject, eventdata, handles)
% varargout  cell array for returning output args (see VARARGOUT);
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Get default command line output from handles structure
varargout{1} = handles.output;

% --- Executes on button press in pushbutton1.
function pushbutton1_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
global A B C D E F G ts dx dy dz er fftstart fftstop
h1=findobj('Tag','text10');
set(h1,'String', 'Running');
t0 = clock;
clear port port2 V1 I1 V2 I2
sprintf('set BRT_RUNTIME=dx9 & 3dfilter.exe %.0d %2.3f %0.4f %0.4f %0.4f %s %s %s %s %s %s %s', ts, er, dx, dy, dz, num2str(B), num2str(C), num2str(D), num2str(E), num2str(F), num2str(A), num2str(G))
system(sprintf('set BRT_RUNTIME=dx9 & 3dfilter.exe %.0d %2.3f %0.4f %0.4f %0.4f %s %s %s %s %s %s %s', ts, er, dx, dy, dz, num2str(B), num2str(C), num2str(D), num2str(E), num2str(F), num2str(A), num2str(G)))
dt=5.899437e-13;
load port.txt;
V1=port(:,1);
I1=-port(:,2);

load port2.txt;
V2=port2(:,1);
I2=-port2(:,2);

n=ts;

    [vf,fc,nf]=ADFT(V1,n,dt,fftstart,fftstop,.1);
    [iff,fc,nf]=ADFT(I1,n,dt,fftstart,fftstop,.1);

    [vf2,fc,nf]=ADFT(V2,n,dt,fftstart,fftstop,.1);
    [iff2,fc,nf]=ADFT(I2,n,dt,fftstart,fftstop,.1);

    
    
    zf=vf./iff;
    zf2=vf2./iff2;
    sf=abs((zf-50)./(zf+50));
    sf2=abs((zf2-50)./(zf2+50));
    
    a1=((vf+50.*iff)./(2.*sqrt(50)));
    b1=((vf-50.*iff)./(2.*sqrt(50)));

    a2=((vf2+50.*iff2)./(2.*sqrt(50)));
    b2=((vf2-50.*iff2)./(2.*sqrt(50)));
    
    h1=figure;
    plot(fc,20*log10(abs(b1./a1)), 'LineWidth', 2);
    legend('S11');
    xlabel('Freq - GHz');
    ylabel('S11 - dB');
    title('S11 vs Frequency');
    grid on;
    
    
    h1=figure;
    plot(fc,20*log10(abs(a2./a1)), 'LineWidth', 2);
    legend('S21');
    xlabel('Freq - GHz');
    ylabel('S21 - dB');
    title('S21 vs Frequency');
    grid on;
    
    h1=figure;
    plot((1:ts)*dt,V1,'b-',(1:ts)*dt,V2,'r:', 'LineWidth', 2);
    grid on;
    legend('Port 1', 'Port 2');
    xlabel('Time (s)');
    ylabel('Voltage (V)');
    title('Port Voltage vs Time');    
      
    h1=figure;
    plot((1:ts)*dt,I1,'b-',(1:ts)*dt,I2,'r:', 'LineWidth', 2);
    grid on;
    legend('Port 1', 'Port 2');
    xlabel('Time (s)');
    ylabel('Current (A)');
    title('Port Current vs Time');   
    
    h1=figure;
    plot(fc,real(zf),'b-',fc,imag(zf),'r:', 'LineWidth', 2);
    grid on;
    legend('Z_{in} Real','Z_{in} Imag');
    xlabel('Freq - GHz');
    ylabel('Z_{in} - Ohms');
    title('Filter Input Impedance vs Frequency');
    
h1=findobj('Tag','text10');
set(h1,'String', ['Runtime - ' num2str(etime(clock,t0)) ' s']);

% --------------------------------------------------------------------
function FileMenu_Callback(hObject, eventdata, handles)
% hObject    handle to FileMenu (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)


% --------------------------------------------------------------------
function OpenMenuItem_Callback(hObject, eventdata, handles)
% hObject    handle to OpenMenuItem (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
file = uigetfile('*.fig');
if ~isequal(file, 0)
    open(file);
end

% --------------------------------------------------------------------
function PrintMenuItem_Callback(hObject, eventdata, handles)
% hObject    handle to PrintMenuItem (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
printdlg(handles.figure1)

% --------------------------------------------------------------------
function CloseMenuItem_Callback(hObject, eventdata, handles)
% hObject    handle to CloseMenuItem (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
selection = questdlg(['Close ' get(handles.figure1,'Name') '?'],...
                     ['Close ' get(handles.figure1,'Name') '...'],...
                     'Yes','No','Yes');
if strcmp(selection,'No')
    return;
end

delete(handles.figure1)



% --- Executes on slider movement.
function slider1_Callback(hObject, eventdata, handles)
% hObject    handle to slider1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'Value') returns position of slider
%        get(hObject,'Min') and get(hObject,'Max') to determine range of slider
global C
C= round(get(hObject,'Value'));
set(hObject,'Value', C);
h1=findobj('Tag','text8');
set(h1,'String', num2str(C));
setspace;
% --- Executes during object creation, after setting all properties.
function slider1_CreateFcn(hObject, eventdata, handles)
% hObject    handle to slider1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: slider controls usually have a light gray background.
if isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor',[.9 .9 .9]);
end


% --- Executes on slider movement.
function slider2_Callback(hObject, eventdata, handles)
% hObject    handle to slider2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'Value') returns position of slider
%        get(hObject,'Min') and get(hObject,'Max') to determine range of slider
global D
D= round(get(hObject,'Value'));
set(hObject,'Value', D);
h1=findobj('Tag','text9');
set(h1,'String', num2str(D));
setspace;


% --- Executes during object creation, after setting all properties.
function slider2_CreateFcn(hObject, eventdata, handles)
% hObject    handle to slider2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: slider controls usually have a light gray background.
if isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor',[.9 .9 .9]);
end


% --- Executes on slider movement.
function slider3_Callback(hObject, eventdata, handles)
% hObject    handle to slider3 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'Value') returns position of slider
%        get(hObject,'Min') and get(hObject,'Max') to determine range of slider
global A
A= round(get(hObject,'Value'));
set(hObject,'Value', A);
h1=findobj('Tag','text6');
set(h1,'String', num2str(A));
setspace;

% --- Executes during object creation, after setting all properties.
function slider3_CreateFcn(hObject, eventdata, handles)
% hObject    handle to slider3 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: slider controls usually have a light gray background.
if isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor',[.9 .9 .9]);
end


% --- Executes on slider movement.
function slider4_Callback(hObject, eventdata, handles)
% hObject    handle to slider4 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'Value') returns position of slider
%        get(hObject,'Min') and get(hObject,'Max') to determine range of slider
global B
B= round(get(hObject,'Value'));
set(hObject,'Value', B);
h1=findobj('Tag','text7');
set(h1,'String', num2str(B));
setspace;

% --- Executes during object creation, after setting all properties.
function slider4_CreateFcn(hObject, eventdata, handles)
% hObject    handle to slider4 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: slider controls usually have a light gray background.
if isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor',[.9 .9 .9]);
end



function edit1_Callback(hObject, eventdata, handles)
% hObject    handle to edit1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of edit1 as text
%        str2double(get(hObject,'String')) returns contents of edit1 as a double
global ts
ts = str2num(get(hObject,'String'));