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Phase shifter

A phase shifter and connecting part technology, applied in the field of phase shifters, can solve the problems of affecting the electrical performance indicators of communication networks, stress failure of threaded assemblies, unstable phase shifter functions, etc., to achieve stable and reliable welding performance and avoid interference. , The effect of reducing the installation process and time

Pending Publication Date: 2017-07-21
MOBILE ANTENNA TECH SHENZHEN +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the coaxial cable in the cavity-type phase shifter is usually connected to the phase shifter housing (metal cavity) through a connection block. Firstly, the coaxial cable is connected to the connection block, and then the connection block is passed through It is connected with the phase shifter housing. Due to this connection method, the threaded assembly is prone to stress failure during the production and assembly process, and the structural strength will be weakened. In addition, the threaded assembly is also prone to slipping, which causes The connection between the connection block and the shell of the phase shifter will be loose, which will cause the function of the phase shifter to be unstable and seriously affect the electrical performance indicators of the corresponding communication network

Method used

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Embodiment 1

[0037] refer to Figure 1 to Figure 3 , the present invention provides a phase shifter 100, including a metal cavity 1, a PCB board 2, a coaxial cable 3, a dielectric phase shifter 4, a tie rod 5 and a positioning column 6.

[0038] The metal cavity 1 includes a cavity body 11 and a connecting portion 12, and the cavity body 11 and the connecting portion 12 are integrally formed. The cavity body 11 includes a bottom wall 112 , a pair of side walls 111 extending upward along both sides of the bottom wall 112 in a longitudinal direction, and a top wall 110 straddling the pair of side walls 111 . The metal cavity 1 is open at both ends laterally to accommodate the PCB board 2 , the coaxial cable 3 , the dielectric phase shifter 4 and the tie rod 5 .

[0039] In this embodiment, the cavity body 11 is divided into two independent upper and lower chambers 115 by the partition plate 113 in the longitudinal direction. Corresponding to each independent chamber, a pair of side walls 1...

Embodiment 2

[0051] refer to Figure 9 The difference between the metal cavity 1a of this embodiment and the metal cavity 1 of the above-mentioned first embodiment is that in this embodiment, the outer sides of the pair of side walls 111a of the metal cavity 1a are provided with corresponding two independent cavities. In the two connecting parts 12a of the chamber 115a, the openings of the semi-arc grooves 121a on the two connecting parts 12a outside the same side wall 111a are oppositely arranged, and the opening of the semi-arc grooves at the upper connecting part is upward, and the opening of the lower one is upward. The opening of the semicircular arc groove of the connecting part is downward.

[0052] In this embodiment, during welding, the heating source can be placed between the upper and lower half-arc grooves, which can heat the upper and lower half-arc grooves at the same time, and weld the upper and lower coaxial cables at the same time, effectively improving the welding efficie...

Embodiment 3

[0054] refer to Figure 10 The difference between the metal cavity 1b of this embodiment and the metal cavity 1 of the above-mentioned first embodiment is that in this embodiment, the metal cavity 1b is provided with two independent The openings of the two connecting portions 12b of the chamber 115b and the semicircular arc grooves 121b on the two connecting portions 12b are all upward.

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Abstract

The invention provides a phase shifter which comprises a metal cavity, a PCB and a coaxial cable. The metal cavity comprises integrally formed cavity body and connecting part. The metal cavity body comprises a bottom wall, a pair of side walls, and a top wall which goes across the side walls. The outer side of at least one side wall of the cavity body is provided with at least one connection part which is provided with a semicircle arc groove with an upward opening or downward opening. The outer conductor of the coaxial cable is welded to the inner wall of the semicircle arc groove, and the inner conductor is welded to the PCB. According to the phase shifter, the metal cavity is integrally formed, the semicircle arc groove is arranged in the connection part, the outer conductor of the coaxial cable is welded to the inner wall of the semicircle arc groove, the inner conductor is welded to the PCB, a problem of a failed connection between the coaxial cable and the semicircle arc groove is avoided, and the consistency and stability of the performance of the phase shifter are greatly improved. The opening of the semicircle arc groove is upward or downward, the effective cooperation of the connection part and welding equipment is facilitated, the welding is rapidly and conveniently realized, and the installation process and time are greatly reduced.

Description

technical field [0001] The invention relates to the field of mobile communication base station antennas, in particular to a phase shifter. Background technique [0002] With the rapid development of communication technology, there are more and more applications of base station multi-frequency electric adjustable antennas. In the foreseeable future, multi-frequency electric adjustable antennas and limit antennas will become an important development direction of base One of the key components of the adjustable antenna, its performance determines the reliability and stability of the multi-frequency electrical adjustable antenna. [0003] In the prior art, the coaxial cable in the cavity-type phase shifter is usually connected to the phase shifter housing (metal cavity) through a connection block. Firstly, the coaxial cable is connected to the connection block, and then the connection block is passed through It is connected with the phase shifter housing. Due to this connection...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q3/32H01P1/18
CPCH01P1/18H01Q3/32
Inventor 何之斌林勇李凯辉
Owner MOBILE ANTENNA TECH SHENZHEN
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