how to plot antenna gain vs frequency in dbi using HFSS

[iyyappanbala]

i am learning hfss, please help me to plot antenna gain vs frequency in dbi directly.

HFSS 3 have only following unit
db,
dbm,
dbwm,
dbc

then how to plot in dbi, help me!

 

[viper_iv]

dBi is the Gain (in dB) of you antenna related to that an isotropic radiator (which.... doesn't exist in practice).

I believe you can simply consider the Gain in dB you get in HFSS as if it were in dBi.

On the other hand:
- dBm and dBW are relative to Power (not Gain)
- dBc stands for decibels below the carrier (it is used to define the sideband noise properties of oscillators)

 

[flanello]

Gain dB = Gain dBi

For plotting the gain over frequency you need to make a frequency sweep and activate the "save field" option. Then you select under plot Far Fields Reports -> Rectangular plot. Now you can plot the gain versus the frequency.