patch antenna at 35GHZ
The beamwidth you can derive from the radiation pattern. It is mostly defined as the angle between the points (angles) where the gain dropped 3 dB below the main beam gain. It can be specified for both XZ and YZ plane (assuming maximum gain is in positive Z direction).
Front to back ratio is just Gain(front direction) - gain(backwards direction), all in dB. For getting useful simulation results for F/B ratio, you should simulate your antenna with the actual ground plane (not infinite).
can u pls tell how to design 35GHZ phased array antenna using ADS? how to provide phase shift in ADS? please tel me
I am not familiar with ADS, but I am sure you can specify phase shift for sources in ports. Why not start a new thread on the phase shift issue?
is it possible to specify phase shift in ADS?
Ru asking for optimisation ?
For different angles ve to calculate gain ,beamwidth, and side lobe .. how to do this in ADS?please reply
Hello,
Did you put this question in a new thread also? Your problem seems to be how to use ADS instead of "patch antenna at 35 GHz". Make sure to express in your question whether you have a problem with how to design an antenna or how to use ADS.
Go to ADS, layout window of your design , Momentum , post processing and then radiation pattern for 2D or 3D . There you can find all your required details regarding radiation patttern.
Hi,
first your radiation pattern must be for the power ,not for E
second,your radiation pattern must be normalized, i.e.start from 0 dB
now, the beam width is the angle (on x axis) between tow points with power equal to -3dB,this is called half power beamwidth
or -3 dB beamwidh
which gives the beamwidth when the power is half its maximum value
I hope that
my answer helped you