Band-notched ultra-wideband printed open-slot antenna using variable on-ground slits |
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| Authors: | Farrokh-Heshmat N Nourinia J Ghobadi C |
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| Affiliation: | Dept. of Electr. Eng., Urmia Univ., Urmia, Iran; |
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| 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. |
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