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Phase shifter and base station antenna

A technology of base station antennas and phase shifters, which is applied to antennas, waveguide devices, circuits, etc., can solve the problems of increasing processing difficulty and designing different sizes, and achieve the effects of avoiding resonance and reducing production costs

Active Publication Date: 2022-05-31
MOBILE ANTENNA TECH SHENZHEN +2
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a phase shifter, aiming to solve the problem that the ultra-high frequency phase shifter in the prior art has increased processing difficulty due to the small size of the cavity, and phase shifters of different frequency bands need to design different sizes of cavities. question

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  • Phase shifter and base station antenna
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  • Phase shifter and base station antenna

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Embodiment Construction

[0030] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.

[0031] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "thickness", "upper", "lower", "perpendicular", "parallel", "bottom", "angle", etc. is based on the attached The orientation or positional relationship shown in the figures is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to mu...

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Abstract

The invention relates to the technical field of mobile communication base station antennas, and aims to solve the problems in the prior art that the UHF phase shifter is difficult to process due to the small size of the cavity, and the phase shifters of different frequency bands need to design cavities of different sizes. The invention provides a phase shifter, which comprises a rectangular cavity with openings at both ends, a power dividing and feeding network unit fixedly installed in the rectangular cavity, and two dielectrics arranged in the rectangular cavity The moving piece and the pull rods fixedly connected to the two medium moving pieces, the four transverse ends of the medium moving piece are provided with direction holes, and the side walls of the rectangular cavity are provided with several groups of two Openings arranged side by side and used to eliminate resonance. In the present invention, by opening some rectangular openings of different sizes on the side walls of the rectangular cavity, these openings break the environment where high-order modes appear, thereby solving the problem of system resonance protrusion in the UHF miniaturized phase shifter.

Description

technical field [0001] The present invention relates to the technical field of mobile communication base station antennas, and in particular, to a phase shifter and a base station antenna. Background technique [0002] With the rapid development of mobile communication technology, the requirements for the electrical performance and mechanical performance of the base station antenna are getting higher and higher. Smart ESC antennas are base station antennas that use electronic methods to adjust the beam downtilt angle. In order to take into account co-channel interference and cell coverage, beamforming is usually performed on the vertical plane pattern of the antenna. The method to realize beamforming is to optimally adjust the feed amplitude distribution and phase distribution of each radiating element. The diverter is the key component to realize this function. [0003] At present, the working frequency band of the dielectric phase shifter is mainly concentrated in 1.7GH...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/18H01Q3/36
CPCH01P1/18H01Q3/36
Inventor 冯冰冰宋灵锋侯小强袁帅韩香紫
Owner MOBILE ANTENNA TECH SHENZHEN
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