Abstract
This paper discusses the design of a dual-band microstrip antenna for 5G applications with a slot loading technique in the form of a U-Slot. This antenna is designed to work on the 5G service frequency in Indonesia at a frequency of 1.848 GHz (1.8375 -1.8575 GHz) and a frequency of 2.315 GHz (2.300 - 2.330 GHz). The feeding technique used is a feedline feeding technique, while the substrate material used is FR-4 Epoxy with a purity of 4.3 and a thickness of 1.6 mm. In this paper, two antenna designs are compared, namely the conventional antenna design and the antenna design with a U-Slot operating at the same frequency. Parameters compared are antenna dimensions, return loss, VSWR, gain and bandwidth. The addition of a U-Slot on a dual-band microstrip antenna managed to reduce the antenna dimensions by 32.3 % and still be able to work on 5G frequencies in Indonesia with performance that is on target.
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