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A novel printed ultra‐wide band microstrip‐line fed slot antenna with a band‐notched function suitable for ultra‐wide band application is presented and investigated in this article. The band‐notched characteristic is achieved by inserting a circular arc slot on the circular patch. Experimental results show that the proposed antenna meets the requirement of wide working bandwidth of 3.1–10.6 GHz with VSWR <2, while avoiding the interference with the 5‐GHz wireless local area network band. The magnitude and phase of S 21 and group delay are also measured and discussed in this article.
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Gao et al. (2009) studied this question.
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