How move the reflector or antenna in antenna toolbox?

Hello Matlab community,

I am working in Matlab 2022a with the antenna toolbox, and I would like to know if it is possible to move the reflector or the antenna, so that the antenna is not in the centre of the reflector.

Thank you very much.

[Shimon Elkin]

Hi @Victor Ruiz Escorihuela can you elaborate on your question?

maybe a picture will help?

[Victor Ruiz Escorihuela]

Hi @Shimon Elkin,

I would like to go from the image where the dipole is in the centre to the other image where the dipole is on the side of the plane.

Answer 1

[Kiran Ambekar]

Hi @Victor Ruiz Escorihuela,

I understand that you are using the reflector element from the antenna catalog and you want to rotate and move the dipole away from the center. You can achieve this by using the pcbStack object and its properties. This can be done in two ways:

1. Create the geomtery of the reflector and dipole antenna individually using antenna.Rectangle shape and its properties. Assign these shapes as metal layers in the pcbStack object with an 'Air' dielectric layer in between them. Define the feed location using FeedLocations property. Modify other properties of pcbStack related to the feed as per your requirement. Thus the reflector antenna design is ready.

2. Another way to achieve this design is by directly passing the reflector as an input argument to pcbStack. Then modify the Layers property to rotate the dipole and the FeedLocations property to move it away from the center of the reflector. To rotate the dipole, you can use either of rotate, rotateX, rotateY, or rotateZ functions. To move it away from the center of the reflector, you can use either the Center property of the antenna.Rectangle shape in the 3rd Layer pf pcbStack or use the translate function on the shape.

Regards,

Kiran