?
Solved

MATLAB - antenna pattern design

Posted on 2001-07-22
4
Medium Priority
?
5,276 Views
Last Modified: 2008-03-06
hi all,

i need to design an antenna pattern (eg. pencil-beam) for downlink beamforming using MATLAB.
0
Comment
Question by:mamai
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
4 Comments
 
LVL 4

Accepted Solution

by:
prashant_n_mhatre earned 200 total points
ID: 6308309
Below is a MatLab code that computes an antenna pattern, normalizes the results to the peak, and plots the results as a function of theta:

kh=(2*pi);
theta(1)=0;
for i=1:1000
r(i)=sin(theta(i))*2*cos(kh*cos(theta(i)));
if(i<1000)
theta(i+1)=theta(i)+pi/1000;
end
end

dB=20*log(r/max(r));
plot(theta,dB)
axis([0 pi -70 0])
title('Plot of Radiation Pattern for l=10\lambda (the increase in # of lobes is significant)')
xlabel('\theta')
ylabel('dB')

0
 
LVL 4

Expert Comment

by:prashant_n_mhatre
ID: 6344770
done?
0
 
LVL 54

Expert Comment

by:nico5038
ID: 7487645

No comment has been added lately, so it's time to clean up this TA.
I will leave a recommendation in the Cleanup topic area that this question is:
 - Answered by: prashant_n_mhatre
Please leave any comments here within the
next seven days.

PLEASE DO NOT ACCEPT THIS COMMENT AS AN ANSWER !

Nic;o)
0
 
LVL 5

Expert Comment

by:Netminder
ID: 7518980
Per recommendation, force-accepted.

Netminder
EE Admin
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In this post we will learn different types of Android Layout and some basics of an Android App.
This article will inform Clients about common and important expectations from the freelancers (Experts) who are looking at your Gig.
With the power of JIRA, there's an unlimited number of ways you can customize it, use it and benefit from it. With that in mind, there's bound to be things that I wasn't able to cover in this course. With this summary we'll look at some places to go…
Six Sigma Control Plans
Suggested Courses

741 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question