Title :
Band-notched ultra-wideband printed open-slot antenna using variable on-ground slits
Author :
Farrokh-Heshmat, N. ; Nourinia, J. ; Ghobadi, Ch
Author_Institution :
Dept. of Electr. Eng., Urmia Univ., Urmia, Iran
Abstract :
A novel modified printed ultra-wideband (UWB) slot antenna with a square structure and a trapezoid tuning stub as well as a band-notch characteristic is presented. By embedding two L-shaped slits at the edge of the open radiating slot, a tunable notched band, for avoiding interference between the UWB and WLAN systems, is achieved. Moreover, by optimising the dimensions of the polygon-like slot and tuning stub, the impedance bandwidth and matching of the antenna can be improved. The realised slot antenna operates over 2.6-13.6 GHz for VSWR < 2 and has a rejected band of 4.9-5.85 GHz.
Keywords :
antenna feeds; antenna radiation patterns; interference suppression; microstrip antennas; notch filters; slot antennas; ultra wideband antennas; L-shaped slit; UWB; WLAN system; antenna feed; band-notch characteristic; impedance bandwidth; interference avoidance; open radiating slot; printed ultra-wideband open-slot antenna; square structure; trapezoid tuning stub; variable on-ground slit;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2009.1887
