ANTENNA RADIATION UNIT, FEEDING METHOD AND ANTENNA SYSTEM

摘要

An antenna radiation unit, a feeding method and an antenna system are provided. Said antenna radiation unit comprises a dipole, a reflecting board, and a printed integrated circuit board (PCB) feed unit for feeding the dipole. The dipole includes an outer conductor of the dipole balun and an inner conductor of the dipole balun, and the PCB feed unit includes a PCB strip line and a PCB ground layer. Wherein the PCB feed unit is situated on the side of the reflecting board where the dipole is disposed; the PCB strip line is electrically connected with the inner conductor of the dipole balun; the PCB ground layer is coupled with the reflecting board and grounded; and the bottom of the outer conductor of the dipole balun and the reflecting board are grounded with direct current. Said antenna radiation unit, feeding method and antenna system can ensure the passive intermodulation (PIM) reliability of the connecting parts of the dipole and the feeding network in the antenna; and it also ensures the PIM long-term reliability of the connecting parts of the dipole and the feeding network in the antenna.