In the upper (FR2) mm-wave 5G frequency band, the coverage area of a single antenna is very limited. Therefore, many antennas with electronical steering capability are needed for a good quality of service. These antennas have to be cost-effective and reliable, such as reflectarray antennas. The developed 10x10 reflectarray antenna has a gain of approximately 10 dBi and a continuous steering range from -30° to 30°.

In an intercomparison organized within the framework of the German Calibration Service (Deutscher Kalibrierdienst – DKD), seven different calibration laboratories participated in the measurement of the antenna factor for three different antennas according to different standards. Between August 2017 and April 2018, measurements have been performed on a hybrid antenna, a logarithmic-periodic antenna and on an Open Ended Waveguide.

An intercomparison in the framework of the German Calibration Service (Deutscher Kalibrierdienst – DKD) was carried out. Two different travelling standards were used to measure the rise time of a pulse generator and the rise time, bandwidth and attenuation of an oscilloscope. Fourteen participants performed the measurements from September 2015 until May 2016. The overall results show that the measurements of the participating laboratories are in good agagreement with the reference values.

To investigate the possible interference of wind turbines with terrestrial navigation aids and Radar systems, the signals of these systems have to measured in the air space used by aircrafts or being under surveillance, respectively. From the measurements performed in areas with and without wind turbines the influence of these on the signals of terrestrial navigation and/or Radars can be derived. Drone-based and state-of-the-art electronics were used for the measurements.