A simple and compact microstrip‐fed ultra wideband printed monopole antenna is proposed and investigated. The proposed antenna is composed of a circular‐ring fed by a microstrip line and a multistep ground. The measured bandwidth of voltage‐standing wave ratio < 2 is from 3.0 to 12.0 GHz. The transfer functions of antenna systems are given experimentally. The parametric studies are performed numerically in this article.
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Xiao et al. (2009) studied this question.
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