Circular array ditribution

Hi All,
I ma searching for some papers related to circular distribution of arrays, if any one can help me it will be great.

the arrayis a plannar array, but not only ring distributed, I mean that it is a cocentric distribution.

thanks in advance and best regards

are you still looking for papers?

goto IEEE explore and type Circular Array, you'll find plenty of them.
Good amount of work has been done by RS ELIOT on Taylor Distributions