High-performance cavity phase shifter applied to 5G system

The utility model discloses a high-performance cavity phase shifter applied to a 5G system, which comprises a phase shifter cavity, a PCB (Printed Circuit Board) is arranged in the phase shifter cavity, a phase shift strip line is arranged on the PCB, dielectric cover plates are arranged on two sides of the PCB, the dielectric cover plates are connected with the PCB in a sliding manner, and the dielectric cover plates are also connected with a pull rod. Wherein the width of the phase shifter cavity is smaller than 1/4 lambda, lambda is the center frequency wavelength of the antenna working frequency band adopting the cavity phase shifter, and an opening is formed in the dielectric cover plate and is close to the phase shifting strip line. The width of the cavity of the phase shifter is smaller than 1/4 wavelength, so that the resonant frequency of the cavity of the phase shifter can be in addition to the use frequency to be designed, and a designed component and an antenna can work normally. 本实用新型公开了一种应用于5G系统