Progress In Electromagnetics Research M
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By R. Vashi and T. K. Upadhyaya

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A coplanar waveguide (CPW)-fed flexible dual-band antenna using graphene as conducting material and Kapton polyimide as a substrate is proposed. The antenna shows increased impedance bandwidth due to the use of CPW-feed having the values of 80.29% (1.64-3.84 GHz) and 6.31% (5.52-5.88 GHz), respectively. The antenna has an overall size of 0.38λ × 0.43λ at center frequency of 3.4 GHz. The proposed flexible antenna has gain values of 1.82 dBi and 1.68 dBi with efficiency values more than 86% which makes the antenna commercially viable for smart wireless products having space constraints.

R. Vashi and T. K. Upadhyaya, "CPW Fed Flexible Graphene Based Thin Dual Band Antenna for Smart Wireless Devices," Progress In Electromagnetics Research M, Vol. 89, 73-82, 2020.

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