The invention relates to an overlapped and interleaved antenna array. An antenna structure comprises a dielectric material; antenna array units are arranged at either side of the dielectric material; units on any one side of the dielectric material are overlapped or interleaved with units opposite to the units; the dielectric material may also comprise coexisting antenna arrays or array units which radiate in different directions; and the antenna array unit can be formed through using conformal shielding which is applied and selectively removed to create the antenna structure. The device that comprises the antenna structure can comprise a casing that is adopted as a shaped lens, so that antenna aperture size can be increased, and antenna performance can be enhanced.