Title :
Design of UWB semi-circle-like slot antenna with controllable band-notch function
Author :
Sadeghi, Vahid ; Ghobadi, Ch ; Nourinia, J.
Author_Institution :
Dept. of Electr. Eng., Urmia Univ., Urmia, Iran
Abstract :
A novel modified band-rejected circle-like slot antenna with a folded fork-shaped tuning stub, for various UWB applications, is proposed. To achieve band-rejected filtering property at the 5 GHz WLAN bands, the forked-shaped strips are folded back and result in a pair of coupled lines on the tuning stub. Moreover, by optimising the dimensions of the fork-shaped tuning stub, the total bandwidth of the antenna can be greatly improved up to 156%. Measured results show that the realised antenna operates over 2.2-18 GHz for VSWR < 2 and has the notched band from 5.1 to 6.2 GHz.
Keywords :
electromagnetic coupling; microstrip antennas; notch filters; slot antennas; ultra wideband antennas; wireless LAN; UWB application; UWB band-rejected semicircle-like printed slot antenna design; WLAN band; band-rejected filtering property; controllable band-notch function; coupled line pair; efficiency 156 percent; folded fork-shaped tuning stub; forked-shaped strip; frequency 5 GHz; frequency 5.1 GHz to 6.2 GHz;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2009.2099
