I need solution of Antenna theory. Balanis 3rd (wire antenna

[Hyun-sung Hong]

antenna theory balanis solution

anyone have matlab code Example 8.3 , 8.4 ?

I trying to coding 'Moment method" by matlab.
but I could not understand sourcemodeling(delta gap, magnetic frill).

help me plz.

2rd solution are no example and matlab code.

 

[Aya2002]

balanis solutions

Hi friend

I have all the solutions of Balanies but i can not upload , you can download them from www.4shared.com


enjoy

 

[Hyun-sung Hong]

antenna theory balanis

thankx. but
I need just matlab code of example 8.3 8.4.

It seems to easy to code.
but i can't it.

-------[my matlab code ]-------------------------------------------------------------


% Moment Method for Line Antennas
clear all;



%Initial Value
ramda=.001;
f=3*10^8/ramda;
w=2*pi*f;
N=21;
l=0.47*ramda;
a=0.005*ramda;
b=a*2.3; % Zc=50 ohm Example 8.3 from balanis pp.449
delta=l/N;
e0=1/(36*pi)*10^-9;
u0=4*pi*10^-7;
k=w*sqrt(e0*u0);
Vs=1;

% Magnetic frill
n=1;
z=-l/2:l/(N-1):l/2;
R1=sqrt(z.^2+a^2);
R2=sqrt(z.^2+b^2);


for n=1:N;
Eiz(n,1)=-Vs/(2*log(b/a))*(exp(-j*k*R1(1,n))/R1(1,n)-exp(-j*k*R2(1,n))/R2(1,n));
end


%Poklinton integral eq.



n1=1;

for z=-l/2:l/(N-1):l/2
m1=1;
for z1=-l/2:l/(N-1):l/2
R=sqrt(a^2+(z-z1)^2);
Kz(n1,m1)=-1/(j*w*e0)*(exp(-j*k*R)/(4*pi*R^5)*((1+j*k*R)*(2*R^2-3*a^2)+(k*a*R)^2))*l/N;
m1=m1+1;
end
n1=n1+1;

end

% Result = [Iz]=inv([Kz])[Eiz]
Iz=inv(Kz)*Eiz;

plot(-l/2:l/(N-1):l/2,abs(Iz));

-------------------------------------------------------------------------------------------

Magnetic frill source modeling 'Eiz' are correct?

and Why N is bigger than 200 , change result of 'Iz' ?

use Moment method

 

[Aya2002]

antenna theory balanis solutions

My friend see this online downloadable book
www.ece.rutgers.edu/~orfanidi/ewa

it has the moment method programmed and ready to use in any form. as well as, it has many othether methods programmed and ready for use

Montadar

 

[taglub]

Re: balanis solutions

hello aya
this is not solution of balanib antenna theory
it is for another book

 

[ksalim]

Re: antenna theory balanis solution

anyone have matlab code Example 8.3 , 8.4 ?

I trying to coding 'Moment method" by matlab.
but I could not understand sourcemodeling(delta gap, magnetic frill).

help me plz.

2rd solution are no example and matlab code.

here is the whole matlab programs package for balanis 3rd edition.

 

[basitccp]

i need solution manual of Antenna theory by balanis 3rd edition not 2nd edition ...