Design of a microstip fed step slot antenna for UWB communication

The design and performance of a stepped slot printed monopole antenna in the ultrawideband is presented in this article. Mul- tiple resonances generated by the stepped slot geometry are matched in the ultrawideband using a modified microstrip feed. The impedance bandwidth (SWR 2) of the antenna is from 3 to 11 GHz. Radiation patterns are stable and omnidirectional with appreciable gain through- out the band. Performance of the antenna is also analyzed in the time domain, which reveals good pulse handling capabilities. Compact geom- etry of the antenna allows easy commercial deployment. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 1126 -1129, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24262

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