www.pudn.com > antennas-and-radio-wave-propagation.rar > ͼ1-4-4.m, change:2002-01-01,size:834b


deta=0:2*pi/90:2*pi; 
t=0.1; 
f=abs((cos(2*pi*t*cos(deta))-cos(2*pi*t))./(sin(deta)+eps)); 
F=f./max(max(f)); 
subplot(2,3,1);polar(deta,F);title('t=0.1'); 
t=0.25; 
f=abs((cos(2*pi*t*cos(deta))-cos(2*pi*t))./(sin(deta)+eps)); 
F=f./max(max(f)); 
subplot(2,3,2);polar(deta,F);title('t=0.25'); 
t=0.65; 
f=abs((cos(2*pi*t*cos(deta))-cos(2*pi*t))./(sin(deta)+eps)); 
F=f./max(max(f)); 
subplot(2,3,3);polar(deta,F);title('t=0.65'); 
t=0.75; 
f=abs((cos(2*pi*t*cos(deta))-cos(2*pi*t))./(sin(deta)+eps)); 
F=f./max(max(f)); 
subplot(2,3,4);polar(deta,F);title('t=0.75'); 
t=1; 
f=abs((cos(2*pi*t*cos(deta))-cos(2*pi*t))./(sin(deta)+eps)); 
F=f./max(max(f)); 
subplot(2,3,5);polar(deta,F);title('t=1'); 
t=1.5; 
f=abs((cos(2*pi*t*cos(deta))-cos(2*pi*t))./(sin(deta)+eps)); 
F=f./max(max(f)); 
subplot(2,3,6);polar(deta,F);title('t=1.5');