Slot antenna has metal surface, three or more slots forming half-wavelength resonators arranged rotation-symmetrically with respect to geometric centre

摘要

The slot antenna has a metal surface and several slots (3.1/3.2;4.1/4.2;5.1/5.2;6.1/6.2) forming half-wavelength resonators, whereby the three or more slots are arranged rotation-symmetrically wrt. a geometric centre(16). Feed slots (3.4,3.5-6.4,6.5) for the half-wave resonator slots form paired coplanar conducting sections.