A small size wideband (2–6 GHz) circularly‐polarised log‐periodic Koch fractal antenna (LPKFA) is proposed. The circular polarisation is produced by using a pair of unequal length crossed‐dipoles, and the wideband property is achieved based on the concept of the log‐periodic dipole antenna without a matching network. In addition, Koch‐shaped dipoles are used as the radiation elements in the design.
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Liu et al. (2013) studied this question.
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