Copper Coin loaded Miniaturized Slot Antenna

摘要

This article presents a new technique of slot antenna miniaturization using a copper coin loading at a location close to the center position of the slot. The resonant frequency for reference antenna and loaded antenna are 2.86GHz and 1.45GHz respectively. As a result, the frequency of loaded antenna reduces by a factor of 49.30% compared to the reference antenna topology with good radiation characteristics. A prototype of the proposed antenna is fabricated on an FR4 microwave substrate with ground plane size 100×100 mm^{2, and its reflection coefficient, E-plane, H-plane and efficiency are compared with the simulation results.}