helicalsetparameters.m

天线设计方面的资料

function HelicalSetParameters(handles,X,Y)
format = '%2.3g';

% Set the displayed values
set(handles.Parameter1,'String',sprintf(format,X(1))); % Axial Lenght
set(handles.Parameter2,'String',sprintf(format,Y(1))); % Gain
set(handles.Parameter3,'String',sprintf(format,Y(2))); % Pitch
set(handles.Parameter4,'String',sprintf(format,Y(3))); % Bandwidth
set(handles.Parameter5,'String',sprintf(format,X(1)/sind(Y(2))));
if get(handles.Units,'Value')
    Frequency = get(handles.Frequency,'Value');
    Pitch = atand(tand(Y(2))*300/Frequency);
    S = (tand(Pitch)*2*pi);
 else 
    S = (tand(Y(2))*2*pi);
end
Nturns = X(1)/S;
set(handles.Parameter7,'String',sprintf(format,Nturns));
set(handles.Parameter8,'String',sprintf(format,S));
% Backup the displayed values in unused Value tag. This allows other
% functions to retrieve parameters from the Value, and prevents users from
% changing values by editing the text.
set(handles.Parameter1,'Value',str2double(sprintf(format,X(1))));
set(handles.Parameter2,'Value',str2double(sprintf(format,Y(1))));
set(handles.Parameter3,'Value',str2double(sprintf(format,Y(2))));
set(handles.Parameter4,'Value',str2double(sprintf(format,Y(3))));
set(handles.Parameter5,'Value',str2double(sprintf(format,X(1)/sind(Y(2)))));
set(handles.Parameter7,'Value',str2double(sprintf(format,Nturns)));
set(handles.Parameter8,'Value',str2double(sprintf(format,S)));

if (Y(2) < 10 ) | ( Y(2) > 13 )
    set(handles.PitchWarning,'String',{'For a predictable design a pitch angle between 10 and 13 is prefereable'});
else 
    set(handles.PitchWarning,'String','');
end