factor directional antenna array

Hello! How does the use of Phased Array System Toolbox to calculate the ratio of the simulated directional antenna array?

[Honglei Chen]

Hi Pomisov, could you clarify what you mean by ratio?

[Pomisov Andrey]

Directive gain of the antenna array

Answer 1

[Honglei Chen]

Hi Pomisov,

There are two ways you can see the directivity information.

The first one is to plot the radiation pattern. For example

fc = 3e8; c = 3e8;
h = phased.ULA(4,0.5);
plotResponse(h,fc,c,'format','polar')

You can also use ArrayGain. It is the SNR gain achieved by the array compared to a single element. It is not exactly the directivity but it is related to that.

fc = 3e8; c = 3e8;
h = phased.ULA(4,0.5);
hag = phased.ArrayGain('SensorArray',h,'PropagationSpeed',c);
% calculate array gain at boresight in dB
g = step(hag,fc,[0;0])

HTH,

[Pomisov Andrey]

But how do I calculate it is numerically Directive gain of the antenna array???

Answer 2

[Pomisov Andrey]

But how do I calculate it is numerically Directive gain of the antenna array???

[Honglei Chen]

Does the code above using ArrayGain works for you? If not, could you give me a simplified example? Thanks.