Labore und Messausstattung

Labs and Equipment

Labs of IMW include state of the art microwave and millimeterwave measurement equipment including the newest versions of spectrum analysers and network analysers.

Facilities for antenna characterization include three anechoic chambers, i.e.

  • Far Field Chamber

    The far field antenna measurement facility consists of a fully shielded chamber (8 x 4 x 3 m³). It is equipped with electromagnetic absorbers (E&C Wavasorv VHP 12, 18, 26). We use it for radiation tests and antenna measurements in the frequency range of 0.4 < f [GHz] < 40. The positioner is a 1.5 m turntable that can carry also larger AUT, e.g. a full-body human test phantom for body-centric wireless and bio-medical applications. It can be upgraded with an additional axes for 3D positioning of the AUT.

  • Compact Antenna Test Range

    The Compact Antenna Test Range (CATR) is a fully customized design by WavePro. A CATR used a parabolic reflector to transform a spherical wave into a plane wave that illuminates the AUT. Our chamber is equipped with a 1.5 m diamond shape roll-edged reflector enabling a superior quite zone for the AUT of 80 cm. Currently, we use the facility for high performance antenna measurements in the frequency range 3 < f[GHz] < 110.

  • Spherical Near Field System with stationary AUT

    The spherical near field system is a customized design by WavePro. It is developed for antenna measurements of stationary AUT that require microprobe feeding, such as integrated millimeterwave antennas that are intended to be connected to a frontend IC. During the different stages of the antenna design process the antenna can be connected on the footprint of the chip package directly by microprobes. The gantry arm of the antenna systems moves the probe antenna on a spherical surface around the stationary AUT and measures the electromagnetic near field of the antenna. The radiation pattern and related parameters are then calculated by a spherical near field to far field transformation. The whole system is mounted on air springs in order to compensate for vibrations. The system is designed for the frequency range of 8 < f[GHz] < 110.