Planar monopole UWB antenna with 5GHz dual notched band characteristics

These days most of the research work in the area of antenna design is focused on monopole antennas for UWB communications due to their high data rate, precision and low complexity. However, interference effect increases within the Ultra wide Band due to the increasing growth of 802.11a wireless LAN in the frequency band of 5 GHz in many countries. To minimize this closely found in-band interference effect, antennas with closely found notch band characteristics are becoming essential. The idea of band notch is extended in this paper by the placement of parasitic strips at different positions on the bottom of the substrate to achieve dual notches in 5 GHz band. Experimental results show that this technique can be employed to generate sharp controllable notch and/or dual notch bands with reasonable accuracy. Streszczenie. Przedstawiono projekt anteny do szerokopasmowej komunikacji w paśmie 5 GHz w sieciach bezprzewodowych standardu 802.11a. Wlaściwości anteny ksztaltowano przez dodanie dodatkowych paskow w roznych pozycjach. (Planarna jednobiegunowa antena UWB pracująca w paśmie 5 GHz)