There are two types of dipole feed you can build depending on what sort of circuit board you have at hand.
Single sided or double sided board. The single sided version is easier to build
and there is very little difference between the two. The double sided board just looks slightly
more professional. In either case you should consider protecting your board if it is to be placed
out in the weather. The only problems you will have are corrosion and water and insects
detuning you antenna. These are easily taken care of, but even if you do nothing the antenna
will work in most situations, more so if it is double sided version.