simulate antenna

To desigh the patch antenna You can use 2.5D simulator (MWO, Sonnet), or CST-MWS if Your structure has many layers. To Yagi-Uda ... usually the formulas from Balanis book gives the good result, but if You want to simulate it, try to use SuperNEC or CST-MWS.

With responce,
Kit-the-great

winnec or supernec will be fine...

This site http://www.qsl.net/wb6tpu/swindex.html has a large number of free NEC based programs.

doesn't ansoft have a package for antenna design?

Since MWO or Sonnet uses a close box for simulation (In sonnet only one wall canbe removed to obtain radiation pattern) they should not be used to simulate a patch antenn. Do it with free of cost using ensemble student version. Otherwise IE3D is a good and S wasteing option.

Also for a Yagi CST should not be tryed. It will take very long time to optimize a yagi(Actually Uda was the inventor, poor man). SuperNEC is a good choice but many other NECs are available for free of cost.

hi.
you can use "superNEC" or "HFSS" or "HPHFSS"
to simulate this antenna.
thank u.

hi
please can you tell me the kind of smart antenna witch is used on BTS(base station)
thanks

Added after 19 minutes:

an other question please
wath is the caractériustics of smart antenna used in UMTS

Hi,
you can use matlab:


http://www.ece.rutgers.edu/~orfanidi/ewa/ ch 18 and 22

or

http://ece.wpi.edu/mom/index.html


I hope, that I helped you