Antenna coupler

摘要

An antenna coupler for testing a mobile-radio device with a coupling element formed in a flat manner by strip conductors on a printed-circuit board and with a retaining device formed on a first side of the printed-circuit board for positioning a mobile-radio device in the vicinity of the coupling element. On the first side of the printed-circuit board, at least one slit structure is introduced into an ground metallization formed there. For feeding the slit structure serving as the coupling element, at least one stripline formed on the second side facing away from it forms a microstripline with the ground metallization remaining between the slit structure of the first side.

主权项

1. 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.