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Fractal geometry applied to design of communications systems antennas

Krzysztofik W. J., Cao T. N.

Przegląd Telekomunikacyjny + Wiadomości Telekomunikacyjne

2017

nr 6

206--209, CD

This paper presents the fractal geometries and their application in the design of small, multi-band antennas. Fractals are described by means of Iteration Function System. Some useful pre-fractals were designed, numerically modeled and fabricated for applications in different modern mobile communication systems such as GSM/UMTS, WLAN, GPS, TV-Sat, etc. Experimental verifications well confirmed the results of simulation made by means of HFSS computer code.

Integrated dynamic UKC assessment system for Polish ports

Gucma L., Schoeneich M., Artyszuk J., Jankowski S., Duczkowski M., Gralak R., Puszcz A.

Zeszyty Naukowe / Akademia Morska w Szczecinie

2012

nr 32 (104) z. 2

41-47

In this article an integrated system for dynamic under keel clearance (UKC) assessment is presented. The system was created to improved navigation safety and economic effectiveness in Polish ports. In this paper principle of model operations and utilization with modern, available mobile devices in integration with wireless data transmission technology was introduced.