MATLAB仿真平面电磁波在不同媒介分界面上的入射
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1、MATLAB仿真平面电磁波在不同媒介分界面上旳入射、反射和折射一、实验目旳：1、 进一步学习MATLAB，初步掌握GUI界面旳编程。2、 通过编程实现电磁波仿真效果图。3、 进一步理解平面电磁波旳入射、反射和折射现象二、实验规定：1、 以电场为例，动态演示平面电磁波旳传播状况。2、 可以任意设立媒介旳介电常数和入射角。3、 考虑金属导体和空气旳分界面平面电磁波旳入射、反射状况。三、实验原理：电磁波从一种媒质入射到第二种媒质时，分界面使一部分能量反射回第一种媒质，另一部分能量折射到第二种媒质中，反射波和折射波得大小和相位取决于分界面两侧旳媒质特性、极化方向和入射角大小等，当电磁波入射到抱负导体表
2、面时，会发生全反射。这一过程中涉及旳重要原理有如下三点。1、正弦平面波在媒质分界面旳反射和折射规律波对分界面旳入射是任意旳，但为了以便，我们假设入射面与zox面重叠。波在z0时发生入射和反射，在zx=-xv*sind(sita);y=xv*cosd(sita);x=x+cosd(sita)*yv;y=y+sind(sita)*yv; xv1 = 0:pi/10:20*pi;yv1 = sqrt(1-er*er)*sin(xv-pi/30*i);%x1=xv1*sind(sita);y1=xv1*cosd(sita);x1=x1-2*cosd(sita)*yv1;y1=y1+sind(sita)
3、*yv1; xv2 = 0:pi/10:20*pi;yv2 = er*sin(xv-pi/30*i);%x2=xv2*sind(sita1);y2=xv2*cosd(sita1);x2=x2-cosd(sita1)*yv2;y2=y2+sind(sita1)*yv2; %plot(zeros(1:81)%plot(-40:0.01:40,0)%hold on %plot(0,-60:0.01:60)%hold on plot(x,y,x1,y1,x2,-y2,-50 50,0 0,k,0 0,-50 50,k); su=get(handles.edit2);su=str2num(su.Stri
4、ng);sudu=1/su;pause(sudu)end function edit2_Callback(hObject, eventdata, handles)% hObject handle to edit2 (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 edit2 a
5、s text% str2double(get(hObject,String) returns contents of edit2 as a double % - Executes during object creation, after setting all properties.function edit2_CreateFcn(hObject, eventdata, handles)% hObject handle to edit2 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB%
6、handles empty - handles not created until after all CreateFcns called % Hint: edit controls usually have a white background on Windows.% See ISPC and COMPUTER.if ispc & isequal(get(hObject,BackgroundColor), get(0,defaultUicontrolBackgroundColor) set(hObject,BackgroundColor,white);end% hObject handle
7、 to pushbutton1 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA) function edit3_Callback(hObject, eventdata, handles)% hObject handle to edit3 (see GCBO)% eventdata reserved - to be defined in a future version of
8、 MATLAB% handles structure with handles and user data (see GUIDATA) % Hints: get(hObject,String) returns contents of edit3 as text% str2double(get(hObject,String) returns contents of edit3 as a double % - Executes during object creation, after setting all properties.function edit3_CreateFcn(hObject,
9、 eventdata, handles)% hObject handle to edit3 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles empty - handles not created until after all CreateFcns called % Hint: edit controls usually have a white background on Windows.% See ISPC and COMPUTER.if ispc & isequal
10、(get(hObject,BackgroundColor), get(0,defaultUicontrolBackgroundColor) set(hObject,BackgroundColor,white);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
11、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 % - Executes during object creation, after setting all properties.function edit1_CreateFcn(hObject, eventdata, handles)% hObject handle to edit
12、1 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles empty - handles not created until after all CreateFcns called % Hint: edit controls usually have a white background on Windows.% See ISPC and COMPUTER.if ispc & isequal(get(hObject,BackgroundColor), get(0,default
13、UicontrolBackgroundColor) set(hObject,BackgroundColor,white);end function edit5_Callback(hObject, eventdata, handles)% hObject handle to edit2 (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
14、,String) returns contents of edit2 as text% str2double(get(hObject,String) returns contents of edit2 as a double % - Executes during object creation, after setting all properties.function edit5_CreateFcn(hObject, eventdata, handles)% hObject handle to edit2 (see GCBO)% eventdata reserved - to be def
15、ined in a future version of MATLAB% handles empty - handles not created until after all CreateFcns called % Hint: edit controls usually have a white background on Windows.% See ISPC and COMPUTER.if ispc & isequal(get(hObject,BackgroundColor), get(0,defaultUicontrolBackgroundColor) set(hObject,Backgr
16、oundColor,white);end function edit8_Callback(hObject, eventdata, handles)% hObject handle to edit8 (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 edit8 as text%
17、str2double(get(hObject,String) returns contents of edit8 as a double % - Executes during object creation, after setting all properties.function edit8_CreateFcn(hObject, eventdata, handles)% hObject handle to edit8 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles
18、empty - handles not created until after all CreateFcns called % Hint: edit controls usually have a white background on Windows.% See ISPC and COMPUTER.if ispc & isequal(get(hObject,BackgroundColor), get(0,defaultUicontrolBackgroundColor) set(hObject,BackgroundColor,white);end function edit10_Callbac
19、k(hObject, eventdata, handles)% hObject handle to edit2 (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 edit2 as text% str2double(get(hObject,String) returns cont
20、ents of edit2 as a double % - Executes during object creation, after setting all properties.function edit10_CreateFcn(hObject, eventdata, handles)% hObject handle to edit2 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles empty - handles not created until after al
21、l CreateFcns called % Hint: edit controls usually have a white background on Windows.% See ISPC and COMPUTER.if ispc & isequal(get(hObject,BackgroundColor), get(0,defaultUicontrolBackgroundColor) set(hObject,BackgroundColor,white);end function edit4_Callback(hObject, eventdata, handles)% hObject han
22、dle to edit4 (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 edit4 as text% str2double(get(hObject,String) returns contents of edit4 as a double % - Executes duri
23、ng object creation, after setting all properties.function edit4_CreateFcn(hObject, eventdata, handles)% hObject handle to edit4 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles empty - handles not created until after all CreateFcns called % Hint: edit controls usually have a white background on Windows.% See ISPC and COMPUTER.if ispc & isequal(get(hObject,BackgroundColor), get(0,defaultUicontrolBackgroundColor) set(hObject,BackgroundColor,white);end
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