Two-side symmetrical arc arm phase shifter of electricity-regulating antenna

Abstract

The present invention provides an arc-arm phase shifter symmetrically arranged on both sides of an electric antenna, including an arc arm, a rotating arm and a feeder line. The two big and small arc arms are symmetrically arranged on two concentric circles, the circle center is the rotating point and the diameter ratio between the big arc arm and the small arc arm is 2:1. The rotating arm is suspended above the feeder line and the two arc arms, including a straight section and a cape section; one end of the cape section is connected in T shape with the symmetric center of the straight section and the other end of the cape section is connected in suspension with the feeder line in the rotating point; the two ends of the straight section of the rotating arm are respectively connected in T-shaped suspension with the two arc arms. The rotating point and the two ends of the rotating arm are located on a same straight line. The input terminal of the feeder line is connected with a feeder source and the four output terminals of the two arc arms are respectively connected with the radiation unit of antenna array. The present invention with simple structure and stable performance can effectively control and adjust the phase difference among radiation units of the antenna array and ensure the constant-power output on each output terminal.

Description

technical field [0001] The invention relates to the technology of base station electronically adjustable antenna equipment, in particular to a double-sided symmetrical arc arm phase shifter for the electronically adjustable antenna. Background technique [0002] The base station is an important part of the mobile communication system. The antenna is the "eyes and ears" of the base station, and is a key component of the front end of the base station, which plays the role of receiving and transmitting signal carriers. In the mobile communication network, the antenna directly determines the coverage and signal transmission of the base station network, and is very important to the operation quality of the mobile communication system. With the development and popularization of mobile communication systems 2.5G and 3G systems, the distribution of base stations in cities is becoming more and more dense, and there are more and more communication frequency bands, which directly brin...

AI Technical Summary

Problems solved by technology

The structure of this phase shifter is more compact, but it is also more difficult to design, and it is more difficult to achieve equal power distribution

[0025] All in all, the defect of the existing pointer phase shifter is that although it can realize the equal difference phase shift of each channel for multiple outputs, it is difficult to ensure the equal power distribution of each output port, which may cause the distortion of the electronically adjustable antenna pattern

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