Transmitarray antennas have been developed and used as high gain antennas in several applications such as satellite, wireless point-to-point and 5G communications. This paper presents a new geometry of the unit-cell for transmitarrays working at the center frequency of 29 GHz. This unit-cell model is based on multi-layer structure and the coupling between cut circular patches and slot elements on different layers. Transmission phase states are obtained by adjusting the size of the patches and the slots. The unit-cells are shown by simulation that they can provide a wide phase range with low loss. A transmitarray is also modeled and simulated using a commercial software HFSS to validate the performance of the unit-cells.
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Transmitarray antennas have been developed and used as high gain antennas in several applications such as satellite, wireless point-to-point and 5G communications. This paper presents a new geometry of the unit-cell for transmitarrays working at the center frequency of 29 GHz. This unit-cell model is based on multi-layer structure and the coupling between cut circular patches and slot elements on different layers. Transmission phase states are obtained by adjusting the size of the patches and the slots. The unit-cells are shown by simulation that they can provide a wide phase range with low loss. A transmitarray is also modeled and simulated using a commercial software HFSS to validate the performance of the unit-cells.