Phase shifters, antennas and wireless communication equipment

Abstract

The embodiment of the invention discloses a phase shifter, an antenna and a wireless communication device. The phase shifter includes a cavity, a rotating shaft, a main circuit printed board PCB, a first slider and a second slider. The first slider is located on the front of the main PCB, coupled with the main PCB, and used to couple the signal to the first arc-shaped phase delay line of the main PCB; the second slider is located on the back of the main PCB, coupled with the main PCB , used to couple the signal to the second arc-shaped phase delay line of the main PCB; the rotating shaft is inserted into the cavity and connected with the first slider and the second slider to drive the first slider and the second slider relative to the main PCB The PCB rotates; the first arc-shaped phase delay line and the second arc-shaped phase delay line are distributed with the center of the rotating shaft as the center of the circle, and are located outside the main central coupling section. The above-mentioned phase shifter can increase the phase adjustment range of the output port and improve the electrical performance of the phase shifter. The invention also discloses the antenna and the wireless communication equipment.

Description

technical field [0001] The embodiments of the present invention relate to the communication field, and in particular, relate to a phase shifter, an antenna and a wireless communication device. Background technique [0002] With the increasingly widespread application of mobile communication, people have put forward higher requirements for communication capacity and quality. The electronically adjustable antenna with adjustable downtilt can achieve good coverage and reduce interference between cells. The phase shifter is an important part of the electronically adjustable antenna, and its phase adjustment range has a great influence on the standing wave matching effect. On the other hand, as the number of antenna ports in the radio frequency system of the base station continues to increase, the miniaturization requirement of the phase shifter is also becoming more and more urgent. [0003] The phase shifter changes the output phase of the output port by adjusting the signal ...

AI Technical Summary

Problems solved by technology

In the prior art, in order to improve the electrical performance of the phase shifter and expand the phase adjustment range, it is often necessary to increase or decrease the signal transmission length from the input port to the output port in a large range, thereby increasing the size of the phase shifter

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