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Need Help!! Effects of Changing Dimentions in Patch Antenna - RF Cafe Forums

The original RF Cafe Forums were shut down in late 2012 due to maintenance issues. Original posts:

Amateur Radio | Antennas | Circuits & Components | Systems | Test & Measurement

 Post subject: need help!! Effects of changing dimentions in patch antenna
Posted: Sun May 08, 2005 9:22 pm 
hiya, i'm a 2nd yr Beng student currently studying patch antennas. i really want to know the effects of changing ground plane size,director size and height, feed line width and patch diameter, etc in dual stub circular patch antennas, similar to those in some 3G base station antennas.

i already know changing of feed line width and ground plate can alter the bandwith, but why?and i can hardly find some explanation of how director works, and why it helps to increase the operation bandwidth.

it seens every diameter being changed is related to bandwidth, why?

( i really want to know the effects of changing ground plane size,director size and height, feed line width and patch diameter, etc )

thanks a lot for helping me!!!!

 Post subject:
Posted: Fri May 27, 2005 7:13 am 
for a start

open google

and look for : " microstrip antennas pdf"

Posted  11/12/2012

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