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In this paper, a Van Koch printed antenna on a photonic‐bandgap fractal substrate is presented. The substrate is designed with grounded Van Koch printed elements. The structure is a multifrequency radiator as a common fractal antenna, but the special synthesis of the substrate enhances the frequency bandwidth and gain, and drives the antenna to radiate a circularly polarized field.
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Katherine Siakavara (2004) studied this question.
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