understanding how resp in phased.Cus​tomAntenna​Element works

I am tyring to understand the output from resp in the phased.CustomAntennaElement toolbox

The code is as follows:

myant= phased.CustomAntennaElement('AzimuthAngles',az, ...

    'ElevationAngles',el,'RadiationPattern',pat_azel);
az, el is -90:90 and -180:180, pat_azel is the custom pattern 181x361

ang = [0 180];

resp = step(myant,fc,ang) gives 2 numbers ?

From the documentation thus far, ang is the value at az=0 elevation=180

so resp should only have a single value, I check the orginal output and it

is in dB mag. and not a vector. I followed this from the custom antenna element example.

Any feedback is welcome, thanks.

Regards, Philip

Answer 1

[Honglei Chen]

Hi Philip,

When you pass in ang = [0 180], it is considered as two angles, az = 0 and az = 180. if you pass in ang = [0;180], then it is one angle pointing at az = 0 and el = 180.

HTH