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A dual-band coplanar waveguide (CPW) printed antenna for IoT application is proposed, mounted on a low-profile RT/Duroid 5880 substrate with dielectric constant of 2.2, loss tangent of 0.0009 and a standard height of 0.787mm.This design aims to cover the major frequency bands from LTE to Bluetooth/Wi-Fi band/WiMax/Zigbee, Extended IMT and 5G whereby the bandwidth range between 1.7 GHz to 3.6 GHz.The antenna is miniaturized through the CPW technique and has a rectangular size of 60 × 30 × 1.187 mm 3 .The design and simulation of the result records a return loss of -25.12dB, peak gain of 4.23dBi, voltage standing wave ratio (VSWR) close to 1, omnidirectional radiation, and current distribution.Radiation efficiency reaches approximately 94%, with a total efficiency of 89.4% between 1.9GHz-3.6GHz.
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Tan et al. (2024) studied this question.
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