creating circular cavity for spiral antenna

Hi I am using matlab R2016a I want to use cavityCircular for designing the cavity of a spiral antenna

But I am getting the error

Undefined function or variable 'cavityCircular'.

Is circularCavity not available in matlab2016a

Regards Uzmeed

Answer 1

[John D'Errico]

First, I had to check which it was. In one place, you wrote circularCavity. In another, you wrote cavityCircular. Google is my friend though. :)

It tells me that something called cavityCircular does exist, here is the doc:

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

Sadly for you, it seems to have been introduced in R2017b.

So you cannot use it in R2016a. Code from new releases cannot be used by old releases. You would need to update your MATLAB release to get that toolbox. Or you would need to write it yourself.

[uzmeed]

Thank you I got the answer.