We investigated two different arrangements of Halbach arrays for steering magnetic nanoparticles in cancer therapy. The arrays are arranged with permanent magnets where the strong and weak magnetic sides can be changed by rotating the single magnets. For deriving the magnetic force, two different fitting functions were analyzed and compared. Summarized, the magnetic force and, thus, the region where the particles are able to get washed out, can be adjusted using low-cost permanent magnets.

This Paper introduces a low-cost vector network analyzer with a large frequency range made of commercial off-the-shelf components. Its architecture reduces complexity while maintaining many features of more complex designs. The design and some characteristic data is shown. The performance is better than currently available low-cost VNAs. The research was conducted as a Masters Thesis. The goal was creating a device hobbyists can afford and engineers can have on their desk for quick measurements.

This paper presents a guided wave Six-Port interferometric radar system with integrated I/Q offset cancelation. An intelligent algorithm is proposed which optimally adjusts three voltage controlled attenuators and one voltage controlled phase shifter in the radio frequency part of the system. By minimizing the I/Q offset, the standard deviation as well as the relative error are decreased in comparison to an uncompensated measurement setup.