Selected Projects

Radar sensor for precise positioning

The conventional FMCW radar sensors at 24 GHz achieve a detection accuracy in the range of a few cm. Through appropriate sensor design and special evaluation algorithms the accuracy should be significantly increased to the range of several µm. For our project partners we studied the feasibility of such sensors and we developed appropriate procedures for evaluation of the radar signal. In addition, we undertook the development of passive RF components.

 

Measurement of dielectric material parameters

For a number of project partners, we conducted the measurements of dielectric material parameters (permittivity and loss factor) of liquids and solids. The measurements were done for the temperatures of up to 150°C and in the frequency range of 0 to 25 GHz.

 

Antenna systems simulations

If several different antennas are operated in parallel, then the near-field mutual coupling influences the behavior of the whole system. This has a significant impact on the radiative properties of each individual element. Basing on field theoretical methods we calculated for our customers an optimum arrangement of individual antennas, so that the antennas within the given space are as far as possible decoupled and show the expected radiatives properties in the far field.

 

Development of software for exposure calculations around the radio installations

In the proximity of radio installations an exposure to the electromagnetic field arises. This exposure has to stay below the legal exposure limits. On behalf of our client we have developed a software which allows the operator of a radio system to calculate and visualize the exposure of his radio installation in a simple and quick way. For this purpose a new simplified procedure for field calculations was developed, which takes all relevant effects of wave propagation into account.

 

Development of software for a fully automatic calibration procedure

The tuning of the frequency-dependent properties of RF systems is a time consuming process. For our customers, we developed a software which controls the insturumentation and performs the necessary calibration autonomously within the specified boundary conditions. For this purpose we have developed a very quick method for determination of the optimal parameter set. Through this rapid calibration process the bottelneck in the production may be eliminated.