Phase shifter and antenna

Abstract

The embodiment of the invention discloses a phase shifter and an antenna, and relates to the field of communication. A metal cavity and a metal grounding block are connected through a metal connecting piece to realize the common ground of the metal cavity, a coaxial cable and the metal grounding block, so that a grounding structure of the phase shifter is simple in structure and convenient to process; and therefore, the cost is saved, and the structural layout is reasonable. The phase shifter comprises the grounding structure, the coaxial cable and the metal cavity, wherein the grounding structure comprises the metal connecting piece and the metal grounding block; the metal grounding block is electrically connected with an outer conductor of the coaxial cable; and the metal connecting piece is connected with the metal cavity and the metal grounding block respectively, so that the common ground of the metal cavity, the coaxial cable and the metal grounding block is realized.

Description

technical field [0001] The invention relates to the communication field, in particular to a phase shifter and an antenna. Background technique [0002] A phase shifter is an essential component of an antenna that optimizes the communication network by adjusting the angle of the antenna beam by changing the relative phase between the signals of the antenna elements. [0003] The cavity phase shifter includes: a metal cavity, a coaxial cable, and a metal grounding block, wherein the metal grounding block is electrically connected to the coaxial cable. At present, the common ground structure for the metal cavity, the metal grounding block and the coaxial cable is generally as follows: the metal cavity has a small side opening, and the metal grounding block is arranged at the opening and is sealed and connected to the side of the metal cavity; The upper and lower surfaces of the metal cavity are fixedly connected with the metal grounding block, so as to realize the common groun...

AI Technical Summary

Problems solved by technology

[0005] 1. The grounding structure is complex;

[0006] 2. It is necessary to open a hole on the side of the metal cavity, and the opening on the side of the metal cavity needs to match the metal grounding block, so that the metal grounding block and the side of the metal cavity can be sealed, the processing is complicated, and the design is difficult;

[0007] 3. When the upper surface of the metal cavity is connected with screws or other connecting devices, the capacitance and inductance of the connection is relatively sensitive, the energy in the metal cavity is easy to leak, the standing wave debugging is difficult and the consistency is poor, so it is necessary to connect the upper surface of the metal cavity Special treatment is done, resulting in complex processing procedures, high processing costs, and poor stability of the phase shifter

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