?? doherty_current_voltage.m
字號:
%The current and voltage waveform of the Doherty carrier and peak power amplifier
%2006-12-15
%wujianfeng
%Sweden;
close all
clear all
k=4;
n=0;
immax=1;
rl=1;
for im=0:0.01:1
n=n+1;
imm(n)=im;
if im<=immax/k
ima(n)=im;
iax(n)=0;
vma(n)=k*rl*(k*im-iax(n));
vmp(n)=k*rl*im;
else
ima(n)=im;
iax(n)=k*(im-immax/k);
vma(n)=k*rl*(k*im-iax(n));
vmp(n)=k*rl*im;
end
end
figure(1);
plot(imm,ima,'r-+');
hold on
plot(imm,iax,'y-*');
legend('current of the main power amplifier','current of the auxiliary power amplifier');
xlabel('output current of the main amplifier');
ylabel('output current of the main amplifier and auxiliary power amplifier');
title('current of Doherty main and auxiliary power amplifiers');
figure(2)
plot(imm,vma,'r-+');
hold on
plot(imm,vmp,'g-*');
legend('voltage of the main power amplifier','voltage of the auxiliary power amplifier');
xlabel('output current of the main amplifier');
ylabel('output voltage of the main amplifier and auxiliary power amplifier');
title('voltage of Doherty main and auxiliary power amplifiers');
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