Information and communication technologies

Simulation and realization of solid-state electrically tuning filters

Макет 3-резонаторного перестроюваного фільтра з напівпровідниковими варикапами

The solid-state electrically tuning filters are main elements of different multifrequency communication systems with high reliability. New approach to designing electrically tuned band-pass filters that is based on use U-shaped microstrip resonators with several varactors connected to each resonator is proposed. This approach allows to creating prototypes which exceeds world level of varactor-tuned filters.

System researches and applications of the diagnostics facilities for the analysis of the explosions influence on the iron-ore careers of the Crooked Horn on building

The analysis of the modern state of program and technical operative diagnostics facilities of the building objects stress-deformed state under difficult engineer-geological and seismic conditions is conducted. The theoretic-methodology ground of experimental methods of complex geophysical researches of the litodynamic earthly surface processes for industrial explosions on an iron-ore quarry the "South ore mining enterprise" is executed.