Design of a Transmitarray Antenna with Triple Rectangular Rings at 29 GHz

Antenna with high gain and steerable beam is a challenging requirement for point to point wireless communications. Antennas in array configurations can provide high gain characteristic and beam focus. Transmitarray antenna in the last decade is getting high interest for researchers to provide high gain antenna with space-feed mechanism for steering beam feature by accommodating phase distributions of unit cell element in array form. This paper proposes a design of transmitarray in 29 GHz frequency. The unit cell consists of triple rectangular loops. The simulated and fabricated results confirmed that the gain value obtained is 23.6 dB.