A P-Band Low-profile 45° Polarized wideband Magnetoelectric Dipole Antenna

In this paper, a P-band low profile wideband 45° polarized magnetoelectric dipole based on tight coupling is provided. By grading the structure of the electric dipole and the vertical metal patch used to work as a magnetic dipole, the low-frequency working bandwidth of the antenna is extended, and the low-frequency cutoff wavelength of the antenna profile height is one-tenth of the low-frequency cut-off wavelength. By opening a series of slits at the end of the dipole arm, the problem of large difference between horizontal and vertical polarization components in large Angle scanning is improved. The simulation results show that the working bandwidth of the antenna unit is 104% for VSWR<2 under the condition of infinite period boundary. Under array conditions, the antenna operating bandwidth is 100%for VSWR<2, and the difference in the polarization component of the ±45° sweep is within 4.5dB.