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Base station tunable antenna broadband and slow wave phase shifter

An electronically adjustable antenna and wide-band technology, which is applied in the field of communication, can solve the problems of increasing the complexity of wiring, large loss of dielectric materials, and small phase shifting amount of phase shifters, so as to achieve reasonable network power distribution, simple network design, The effect of designing a wide frequency band

Inactive Publication Date: 2015-07-29
佛山市迪安通讯设备有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to increase the variation range of the transmission line length, the size of the existing phase shifter will also increase, which will reduce the wiring space of the antenna feed system, increase the complexity of the wiring, and have a great impact on the electrical performance of the antenna.
There is not a large enough range of transmission line length variation, and the phase shifter has a small amount of phase shift, which directly affects the adjustment range of the downtilt angle of the antenna pattern, which limits the location of the base station antenna
Changing the medium of the transmission line to adjust the downtilt angle of the antenna has the disadvantages of large size of the phase shifter, large loss of dielectric materials, high cost, and small amount of phase shifting

Method used

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  • Base station tunable antenna broadband and slow wave phase shifter
  • Base station tunable antenna broadband and slow wave phase shifter
  • Base station tunable antenna broadband and slow wave phase shifter

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Embodiment Construction

[0019] Such as Figure 1-5 As shown, the broadband slow-wave phase shifter for the electronically regulated antenna of this base station mainly includes two parts: the phase shifter 1 and the phase shifter coupling 2 . The phase shifter 1 uses a dielectric board as a substrate, covered with copper on both sides, and covered with green oil for protection; one side is fully covered with copper, and the other side is covered with copper as a microstrip line; the microstrip line includes a large slow wave arc arm 11, a medium slow wave Wave arc arm 12, small slow wave arc arm 13, central phase output line 14, feeder line 15, axis 16. The phase-shift coupling sheet 2 uses an insulating material as the substrate, and is coated with copper on one side, and is covered with green oil for protection. The copper coating is a microstrip line; its microstrip line includes three coupling ends 21, a transmission line 22, and a coupling rotation axis 23 The three coupling ends 21 are all arc...

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Abstract

The invention discloses a base station tunable antenna broadband and slow wave phase shifter. The base station tunable antenna broadband and slow wave phase shifter mainly comprises a phase shifting piece and a coupling piece, and is characterized in that the wave phase shifter mainly comprises a phase shifting medium piece and a phase shifting coupling piece; copper wholly covers one face of the phase shifting medium piece, and the other face comprises a three-slow-wave-structure circular-arc arm, a feeder line and a central phase output line; the two ends of the three-slow-wave-structure circular-arc arm are connected with antenna radiation units respectively; the central phase output line is connected with the feeder line; the other end of the central phase output line is connected with the antenna central phase radiation unit; a coupling arm is arranged on one face of the phase shifting coupling piece. The base station tunable antenna broadband and slow wave phase shifter adopts a slow wave structure and can guarantee enough phase shifting amount under the condition that the whole volume is smaller; seven paths of the antenna radiation units can be accessed at the same time and the use frequency section is wide; the base station tunable antenna broadband and slow wave phase shifter has the advantages of simple structure, convenience for assembling and the like.

Description

technical field [0001] The invention relates to the technical field of communications, in particular to a base station antenna broadband slow-wave phase shifter. Background technique [0002] At present, the electronic adjustable antenna has become the technical trend of the existing base station antenna. By adjusting the phase shift position of the antenna phase shifter to change the phase of each radiation unit of the antenna, thereby changing the coverage of the antenna beam, so the phase shifter of the antenna is It is the absolute technical core of electric adjustable antenna. In the prior art, the phase shifter generally adjusts the downtilt angle of the antenna by changing the length of the transmission line or changing the medium of the transmission line. The change of the phase shift amount of the phase shifter is directly proportional to the change of the length of the transmission line of the phase shifter. The larger the phase shift amount of the phase shifter, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/18H01Q3/34
Inventor 张小刚
Owner 佛山市迪安通讯设备有限公司
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