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⛄ 内容介绍
研究了直线天线的两种简单分析模型:无穷小偶极子和有限长偶极子.建立了偶极子辐射强度和方向性系数数学模型.应用MATLAB对其性能进行了仿真分析.通过仿真分析比较,得出了和实际结果相符的结论,从而为天线的研究提供了有价值的基础理论.
⛄ 部分代码
% --- Outputs from this function are returned to the command line.
function varargout = dipola_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;
function wave_length_Callback(hObject, eventdata, handles)
% hObject handle to wave_length (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 wave_length as text
% str2double(get(hObject,'String')) returns contents of wave_length as a double
wavelength = str2double(get(hObject,'string'));
handles.wavelength=wavelength;
if isnan(wavelength)
errordlg('You must enter a numeric value','Bad Input','modal')
uicontrol(hObject)
return
end
guidata(hObject,handles)
handles.wavelength;
% --- Executes during object creation, after setting all properties.
function wave_length_CreateFcn(hObject, eventdata, handles)
% hObject handle to wave_length (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
function dipole1_Callback(hObject, eventdata, handles)
% hObject handle to dipole1 (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 dipole1 as text
% str2double(get(hObject,'String')) returns contents of dipole1 as a double
dipole1 = str2double(get(hObject,'string'));
handles.dipole1=dipole1;
if isnan(dipole1)
errordlg('You must enter a numeric value','Bad Input','modal')
uicontrol(hObject)
return
end
guidata(hObject,handles)
handles.dipole1;
⛄ 运行结果
⛄ 参考文献
[1]张清泉, 吉安平, 行小帅,等. 基于MATLAB的偶极子辐射性能仿真分析[J]. 仪器仪表与分析监测, 2011(3):3.
