A mmWave antenna with wide beam scanning angles for 5G/6G communications

In this paper, a wide scan angle phase array antenna is proposed by utilizing the magnetic dipole concept. The antenna element is composed by a coupled fed patch antenna and two grounded metal strips, hence an equivalent magnetic dipole antenna can be obtained for obtaining wide radiation pattern larger than 120° in 25GHz to 28GHz band. With this wide beam antenna unit, a $1 \times 8$ phased array is designed for realizing scanning beam from −70° to +70° with good cross polarization discrimination (XPD) and side lobe level (SLL) less than -10 dB.