A compact coplanar wave guide fed flexible monopole antenna on textile substrate is presented in this article. It consists of H and two concentric C slots. The H slot excites multiple band and the two concentric C slots improve the bandwidths. Measured impedance bandwidths are observed to be 1.5-3.0 GHz and 4.5-6.5 GHz for the first and second bands, respectively. Electromagnetic band gap structure has been used to achieve low specific absorption rate. The antenna has a compact size of 0.367 × 0.367λ. A sample was fabricated and experimentally characterized to verify the design concept and to validate the simulated results.
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Abdu et al. (2018) studied this question.
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