A bow‐tie element with an orthogonal feed arrangement has been developed to conform to the shape of a handheld device. An improved method to feed the bow‐tie antenna was realised, which includes modification to the printed Roberts balun with stubs to provide an exact feed location and broadening of the sharp edges at the feed positions of the bow‐tie elements. A wideband antenna (maximum bandwidth of 22.8%) with dual band characteristics will be shown.
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Teo et al. (2002) studied this question.
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