This paper discusses implementation offractal Monopole wire trace length 1,,IA is given by sum of straight elements into antenna technology. Purpose ofthat is design section which the monopole is consists of from. of fractal log-periodic antenna by means of computer program 4nec2 and operating in frequency range from 0.9 to 2.5 GHz and then this antenna is realized. Dimensions, radiation patterns, frequency dependence ofs1l parameter, input impedance Zin and gain G obtained by the simulation < performed by 4nec2 and measured are compared in this thesis and they are similar. Characteristics, parameters and dimensions ofLPA with fractal elements and LPA with Iteration U Iteration 1 Iteration 2 Iteration 3 common elements obtained by the simulation are compared as well. Fig. 1. Dimension of Oth to 3rd Koch monopole iteration order. Iteration Monopole length IIA Monopole wire trace Keywordslegh/A Fractal LPA, antenna realization, implementation of 0 0.475 0.475 fractal element, comparison Euclidean and fractal.
This paper deals with analysis and optimization of wideband and ultra wideband antenna structures in the time domain by numerical solvers. In proposed method, signals at port and field probes at farfield region are used as powerful and effective markers. The method enables true time-domain computation with no susceptibility to difficulties connected with classical approach; hence is suitable especially for large structures with time-consuming analysis.Using of proposed method is demonstrated on the design of directional ultra wideband tapered slot antenna for ground penetrating radar application. Demonstration uses CST Microwave Studio.
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