Optimization of band-notched UWB antenna using micro-genetic algorithm combined with FDTD |
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Authors: | Xue-xia Yang Jie Sheng |
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Institution: | School of Communication and Information Engineering, Shanghai University, Shanghai 200072, P. R. China |
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Abstract: | The micro-genetic algorithm(MGA)optimization combined with the finite-difference time-domain(FDTD)method is applied to design a band-notched ultra wide-band(UWB)antenna. A U-type slot on a stepped U-type UWB monopole is used to obtain the band-notched characteristic for 5 GHz wireless local area network(WLAN)band. The measured results show that voltage standing wave ration(VSWR)less than 2 covers 3.1-10.6 GHz operating band and VSWR more than 2 is within 5.150-5.825 GHz notched one with the highest value of 5.6. Agreement among the calculated, HFSS simulated and measured results validates the effectiveness of this MGA-FDTD method, which is efficient for UWB antennas design. |
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Keywords: | finite-difference time-domain(FDTD) micro-genetic algorithm(MGA) ultra wide-band(UWB)antennas monopole band-notched antennas |
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