How can we simulate the radiation pattern of an antenna element when it is frequency dependent?

I am referring to this code

freqVector = [1 1.25].*1e9; % Frequency range for element pattern hAnt = phased.CustomAntennaElement('FrequencyVector',freqVector,... 'AzimuthAngles',az,... 'ElevationAngles',el,... 'RadiationPattern',pattern_azel);

Here the antenna has the same radiation pattern for all the frequencies between 1 and 1.25 GHz. How can we simulate if the radiation pattern changes with frequency?

Answer 1

[Honglei Chen]

You can specify a vector in freqVector and a 3D array in RadiationPattern with each page specifying a radiation pattern corresponding to a frequency, e.g.,

freqVector = [1 1.25].*1e9; % Frequency range for element pattern 
hAnt = phased.CustomAntennaElement('FrequencyVector',freqVector,... 
   'AzimuthAngles',az,... 
   'ElevationAngles',el,...  
   'RadiationPattern',cat(3,pattern_azel,pattern_azel+0.6));

HTH