LTCC Based Dual-Polarized Magneto-Electric Dipole Antenna for 5G Millimeter Wave Application

A dual-polarized millimeter wave antenna for 5G application is proposed in this paper. Magneto-electric dipole antenna concept is utilized for this design. Due to the high dielectric constant ceramic material used by LTCC process, the size of the antenna is small which is helpful for integration of the antenna into some home held devices, such as femtocell, Customer-Premises Equipment (CPE), etc. The common operating frequency range of the antenna is from 26.39 GHz to 28.64 GHz that is sufficient for the FCC regulated frequency band. The boresight gain of the antenna for both polarizations is above 5.5 dB across the working frequency range. And the corresponding radiation efficiency is on the level of 90%. The isolation of the dual-polarized antenna is lower than -36 dB. With the help of the LTCC fabrication technology, this antenna is suitable for 5G millimeter wave applications by integrating into the antenna module.