smart antenna

hello everybody, please if someone has already studied the concept of smart antennas, can he explains to me the beamforming and the butler matrix, and thank you so much

try this

thanks plasma,
but I dont know how to make a smart antenna with MATLAB, if you have some examples of simulation I would be grateful
thank yuuu

hi everybody,
please if you know the kind of smart anbtenna used on BTS (patch?dipole?...)and its caractéristics?
thank yu all

BTS antennas are sectorial type , patch or dipole based, circular polarized or dual polarized types.Rarely used omni in rural areas or with very low trafic density.

Hi,

may be about matlab, try:

http://ece.wpi.edu/mom/index.html
or
http://www.ece.rutgers.edu/~orfanidi/ewa/ - for example ch18 - microstrip antenna

hi ,plzz any one can share the use of butler matrix, to generate beams?

---------- Post added at 06:00 ---------- Previous post was at 05:59 ----------

as in MATLAB code or simply algorithm to understand the use of butler matrix for generating beams

follow this link for a book on Smart antenna with MATLAB
Smart antennas for wireless communication - With MATLAB.pdf - 4shared.com - udost

and this link for MATLAB codes
samples_figures Smart antennas for wireless communication- With MATLAB (Gross F.B.- 2005- McGraw Crypt_De algrithms www.pudn.com

can any else help us how to design butler matrix by ADS