Patent ID: 8810461

Claim:
An antenna coupler for testing a mobile-radio device, comprising: a printed-circuit board; a ground metallization formed on a first side of the printed-circuit board; a coupling element formed in a flat manner by strip conductors on the printed-circuit board; and a retaining device formed on the first side of the printed-circuit board for positioning the mobile-radio device in a vicinity of the coupling element, wherein, on the first side of the printed-circuit board at least one spiral-shaped slit structure is introduced into the ground metallization, wherein, for feeding the slit structure serving as the coupling element, at least one stripline is formed on a second side of the printed-circuit board facing away from the first side, the at least one stripline forming a microstripline with the ground metallization that remains between the slit structure of the first side, and wherein, a reflector, formed in a shape of a truncated cone, is provided on the second side of the printed-circuit board.