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designed on a 1.6 mm polymer resin material substrate with measured bandwidths of 220 MHz (4.820 GHz–5.040 GHz) and 650 MHz (7.90 GHz– 8.55 GHz) and a 7.6 dBi peak gain. Furthermore, the corresponding radiation efficiencies of the proposed antenna were 77.4 % and 99.38 % at 4.87 GHz and 8.10 GHz. 2