Differential dual-band dual-polarized filtering antenna applied to 5G Sub 6GHz base station system

A filter antenna, base station system technology, applied in the direction of antenna, antenna coupling, antenna grounding device, etc., can solve the problems of low port isolation, poor suppression characteristics, multi-frequency antenna gain and poor stability of pattern, etc., to achieve low profile , light weight, and the effect of solving electromagnetic interference problems

Active Publication Date: 2019-06-18
XIDIAN UNIV
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

The general dual-polarized antenna has poor out-of-band suppression characteristics outside the working bandwidth, and the gain and pattern stability of the multi-frequency antenna are also poor, and the port isolation of the two polarizations is low

Method used

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  • Differential dual-band dual-polarized filtering antenna applied to 5G Sub 6GHz base station system
  • Differential dual-band dual-polarized filtering antenna applied to 5G Sub 6GHz base station system
  • Differential dual-band dual-polarized filtering antenna applied to 5G Sub 6GHz base station system

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Embodiment Construction

[0033] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, where the schematic embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0034] like figure 1 , 2 As shown, the differential dual-frequency dual-polarization filter antenna applied to the 5G Sub 6GHz base station system of the present invention includes an upper dielectric substrate 1 and a lower dielectric substrate 24, and four metal pillars 11 connecting the upper dielectric substrate 1 and the lower dielectric substrate 24 , 12, 13, 14, the upper dielectric substrate 1 is provided with a metal radiation patch 2, the upper surface of the lower dielectric substrate 24 is provided with a metal floor 25, and metal feeders 15, 16 are printed on the lower surface of the lower dielectric substrate 24 , 17, 18; by slotting the metal radiation patch 2 and introduc...

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Abstract

The invention discloses a differential dual-band dual-polarized filtering antenna applied to a 5G Sub 6GHz base station system. The antenna comprises upper-layer and lower-layer dielectric substratesand four metal columns connecting the upper-layer and lower-layer dielectric substrates; the upper-layer dielectric substrate 1 is provided with a metal radiation patch, and a metal floor 2 is arranged on the upper surface of the lower-layer dielectric substrate and a metal feeder is printed on the lower surface of the same; the dual-band filtering property of the gain is acquired through slottingthe metal radiation patch and introducing a stepped impedance type open circuit branch knot into the metal feeder. The differential dual-band dual-polarized filtering antenna has the advantages of being simple in structure, easy to machine, relatively wide in resonant bandwidth within radiation band, relatively good in dual-band filter response, stable in gain and directional diagram, relativelylow in cross polarization, relatively high in port isolation, and easy to be integrated with the differential circuit. The differential dual-band dual-polarized filtering antenna can be applied to the5G Sub 6GHz base station communication system, and is particularly suitable for +/-45 degree dual-polarized base station antenna system of two bands: 3.3GHz-3.6GHz and 4.8GHz-5.0GHz.

Description

technical field [0001] The invention relates to a differential dual-frequency dual-polarization filter antenna applied to a 5G Sub 6GHz base station system. The antenna works at 3.23GHz-3.67GHz and 4.76GHz-5.13GHz and can be used in a 5G base station system. Background technique [0002] Base station antenna is the front end of receiving and transmitting of wireless communication system, and its performance index is directly related to the quality of wireless communication. With the increasing requirements of wireless communication system for its antenna, the design trend of antenna is miniaturization and array , Low profile, multi-frequency / broadband development, and stable gain and pattern characteristics, high out-of-band suppression characteristics, and excellent isolation are also important indicators of antenna performance. However, the general dual-polarized antenna has poor out-of-band suppression characteristics outside the operating bandwidth, and the gain and patt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q5/20H01Q5/307H01Q5/50H01Q1/52H01Q1/50H01Q1/48H01Q1/38H01Q1/24
Inventor 李亚鹏赵志鹏唐朝阳尹应增
Owner XIDIAN UNIV
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