Uniform Circular Array - Consist of 4 Half wave Dipole Antenna

Dear Community,

I am having trouble trying to plot the directivity and antenna pattern for an example of 4 halfwave dipole antenna in a circular arrangement as shown in the image attached. The electric field is assumed to propagate towards the direction of XY-Axis with the antenna pointing at the normal direction.

Answer 1

[Honglei Chen]

Could you elaborate what is wrong with the result? The code runs without any issue so I'm not sure what issue you ran into. Note that your element spacing is huge compared to the wavelength so the resulting pattern contains many grating lobes.

HTH

[Honglei Chen]

I notice that all your elements points to 45 directions, however, in general UCA has each element points outwards so I don't know if that's what you want. This being said, the element response is omnidirectional in azimuth so that setting doesn't really change the total response.

Other than that, I think the program is doing the right thing.

HTH