Changing the Dielectric Constant of a Microstrip Patch Antenna in Antenna Toolbox

Hi all, I'm trying to reate a Patch Antenna using the Antenna Toolbox. I've been using tutorials, such as the ones found here: http://www.mathworks.com/help/antenna/examples/fmcw-patch-antenna-array.html

All the tutorials I can find mention that "The dielectric substrate is air." How do I change the dielectric constant to a different value (say 3.5 for the Rogers board I'm using), since that can have a large effect on the radiation pattern?

Answer 1

[Vidya Gopalakrishnan]

https://www.mathworks.com/help/antenna/ref/dielectric.html

This is the documentation page for dielectrics. Hope this helps. Please do not hesitate to ask more questions regarding dielectrics if the documentation is not clear.

[James Bond]

That thing is in 2017 or versions after 2016a. Most of us have 2013 or 2015(the more fortunate ones'), so how to get it done in 2015 atleast. Thanks

[Walter Roberson]

There is no way to do it in those older versions.

Answer 2

[Adam Barber]

Hi Abubakar,

Currently it does not seem like there is a way to use a different value for the dielectric constant. I work for MathWorks and I have forwarded this request to the appropriate product team.

-Adam

[Abubakar]

Thanks Adam! Do you know if they will be adding this new feature?

[attila tullner]

When using the Antenna designer tool you can edit the substrate befor uploading the antenna in the workspace. This is 'Air' by default

That worked for me