Phase shifter, antenna system and phase shift method

Abstract

The invention discloses a phase shifter, an antenna system and a phase shift method which are relate to the technical field of communication and are used for conveniently adjusting the lower dip angle of an antenna. The phase shifter disclosed by the invention comprises a phase shift circuit and a transmission component, wherein the phase shift circuit comprises a conducting ring and a coupling component; the conducting ring is connected with a signal input end; the periphery of the conducting ring is provided with a circular arc conductor section which has the same circle center with the conducting ring; the two ends of the circular arc conductor section are connected with signal output ends; the coupling component is provided with a coupling ring which coincides with the center of the conducting ring and is electrically connected with the conducting ring; the coupling ring is connected with a coupling arm; the coupling arm is electrically connected with the circular arc conductor section; the transmission component comprises a gear and a rack which is meshed with the gear; the center of the gear coincides with the centers of the conducting ring and the coupling ring; and the rack drives the gear and the coupling arm to rotate around the center of the gear to synchronously. The phase shifter, antenna system and phase shift method provided by the invention can be used for the phase shift of high-frequency signals.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a phase shifter, an antenna system and a phase shifting method. Background technique [0002] Generally speaking, the antenna has a certain coverage area. When installing the antenna, it is necessary to make the coverage area of ​​the antenna itself coincide with the area designed by people. For this reason, the coverage area of ​​the antenna itself can be adjusted by adjusting the downtilt angle of the antenna. The so-called downtilt angle of the antenna is also called the antenna pitch angle, which is the angle between the antenna and the horizontal direction. [0003] Usually, the adjustment of antenna downtilt can be realized through mechanical downtilt and electrical downtilt. Mechanical downtilt is physically tilting the antenna downward. However, when the antenna is physically tilted downward, the coverage area of ​​the antenna is prone to distortion, thereby causi...

AI Technical Summary

Problems solved by technology

However, when the antenna is physically tilted downward, the coverage area of ​​the antenna is prone to distortion, thereby causing inter-cell interference. In addition, the construction and maintenance of the mechanical downtilt are troublesome, and the adjustment accuracy of the downtilt angle is low (for example, the step accuracy is approximately 1° )

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