Requirements for antenna design

1) space - where will the antenna go. what are the space limitations, size, geometry
2) 

The antenna design procedure.

1) choose a geometric configuration - research on configurations helps here.
2) make sure the antenna is sized so that characteristic wavelengths will "fit". 1/4 wavelength is a good rule of thumb.
3) do a wide band scan and look for any interesting properties of the antenna.
4) narrow the