Connecting a ratiating antenna into the PCB

Hi all

Can someone help me pls?
I need to connect an antenna to a circuit i design. The antenna is a monopole(sigle piece of wire). I know that i need a ground plane also but i don't know how to do this in practice.

Frequency? Desired circuit size?

Most portable radio devices do just this, attach a wire antenna to a PCB or use a PCB antenna. Simply accept, that there is neither
an ideal monopole nor an ideal (infinite) ground plane. So theoretical monopole formulas are invalid. In most cases you have a
kind of unsymmetrical dipole.

Take it as is, try to find out it's properties empirically, make antenna impedance measurements (not so easy, but possible),
or perform an EM simulation of the structure.