Needs of energy availability for electrical devices is growing high. So there is an effort to produce electrical energy by harvesting energy of electromagnetic waves. Capturing the energy of electromagnetic waves is using a microstrip antenna. Then created a microstrip antenna that standard antenna to capture the energy of the electromagnetic waves. Designed microstrip antenna works at 1920 MHz to 2180 MHz band. In this research designed a microstrip antenna of single rectangular patch type implemented on the system RFEH integrated with power harvester EH300 module. Microstrip antenna is made from materials of 4360 Rogers with dielectric permitivity 6.15 in 1.52 mm. The simulation results are VSWR 1.02, Return Loss -39.93 dB, and gain 3.03 dBi at frequency of 2050 MHz. The test results of implementation are VSWR 1. 166, and gain 2.83 dBi at frequency of 2050 MHz. Output voltage from microstrip antenna implemented in systems of RFEH 12.5 mV in 5 minutes when input power is -46.44 dBm.
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