Beam Steering Antenna Based on Continuous Transverse Stub Array and Flat Risley Prism Metasurface Lens

Abstract: Satellite communication is an integral part of society in this day and era. Due tobandwidth limitations communication frequencies have moved into higher frequencybandwidths. With the advancements in communication comes the demand for more efficientantennas due to the high attenuation of millimeter wavelength frequencies. This move tomillimeter wavelength has enabled new types of solutions regarding efficient antennas. Inthis report a series fed continuous transverse stub array beam steering antenna with anoperating frequency of 30 GHz is studied. Scanning is achieved using two phase shiftingsurfaces in a risley prism setup. Results are based on computer simulations and show thatthe proposed antenna is able to achieve full scanning in azimuth and ±50° scanning inelevation. The directivity of the CTS is 26.4 dBi and side lobe level of -12.4 dB at designfrequency.