Increase in wireless networks is from day to day bigger, because of that, the complexity of the users is also getting greater. In 1997 the IEEE 802.11 standard was invented, which provided the basis for the manufacture of wireless products.
Due to the increasingly demanding users, the IEEE 802.11N standard is mostly used, which was introduced in 2009 and supports a frequency of 2,4 GHz, 5 GHz and the use of multiple channels. Because myself and most users use 2,4 GHz frequency I used this frequency to do all of my tests, measurements and development of the antennas themselfs.
The present thesis will firstly explain the wireless signal itself, the explanation and use of different antennas for the transmission of data and their characteristics. Every different model and antenna is built in our simulating environment and then put into our simulating space. As the end product, all the simulated results are presented with the usage of program called HFSS.
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