Implementation of an omnidirectional antenna on a 4G repeater with a working frequency of 1800 MHZ

In this study, an omni antenna is used as a 4G signal amplifier with a frequency of 1800Mhz. The omnidirectional antenna has a gain of about 3-12 dBi. The application of an omnidirectional antenna on a 4G signal amplifier repeater is used as a donor antenna facing the BTS source. The application of an omnidirectional antenna as a donor antenna will allow signal transmission from all directions to the BTS to be received from all directions. This antenna will serve or only emit signals in the vicinity or 360 degrees. While at the top of the antenna, there is no radiation signal. The VSWR test results with the MMANA test software get a reading of 6.5db. The radiation distribution pattern from the plotting results shows a circular spread of 360 degrees. This antenna is suitable for donor antennas that can receive signals from the BTS from all directions from the angle of incidence.