Broadband dual-band dual-polarization filter base station antenna

A base station antenna and dual-polarization technology, applied in the direction of antenna, antenna coupling, antenna components, etc., can solve the problems that the 5G communication system cannot be applied, and the working frequency band does not include the 5G frequency band, so as to increase the main polarization electric field component and expand The effect of working bandwidth and adjusting impedance

Active Publication Date: 2021-02-26
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although the above two antennas have better low-frequency performance, they cannot be applied to 5G communication systems because the working frequency band does not include the 5G frequency band.

Method used

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  • Broadband dual-band dual-polarization filter base station antenna
  • Broadband dual-band dual-polarization filter base station antenna
  • Broadband dual-band dual-polarization filter base station antenna

Examples

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Embodiment Construction

[0029] Embodiments and effects of the present invention are described in further detail below in conjunction with the accompanying drawings:

[0030] refer to figure 1 and figure 2 , the broadband dual-frequency dual-polarization filter base station antenna provided in this example includes a radiation patch 1, a feed structure 2, a dielectric plate 3, a coaxial line 4, a reflector 5 and a coating 6, and the coating 6 fixes the dielectric plate 3, the coaxial line 4 is connected to the feed structure 2, the feed structure 2 and the radiation patch 1 are respectively printed on the upper and lower surfaces of the dielectric plate 3, and the reflector 5 is located below the dielectric plate 3, and is connected to the dielectric plate The distance D of 3 is 0.2-0.5λ. In this example, D=0.25λ, where λ is the wavelength of the base station antenna's low-frequency center frequency of 2.2GHz in free space.

[0031] refer to image 3 , the radiation patch 1, which includes a first...

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Abstract

The invention discloses a broadband dual-frequency dual-polarization filtering base station antenna, which mainly solves the problem that the prior art cannot simultaneously satisfy 2G, 3G, 4G and 5G communications. It includes a radiation patch (1), a feed structure (2), a dielectric plate (3), a coaxial line (4), a reflection plate (5) and a cladding (6), the cladding is fixed on the dielectric plate, The feeding structure and the radiation patch are printed on the upper and lower surfaces of the dielectric board respectively, and the reflector is located under the dielectric board; the edge of the radiation patch has a mouse-ear-shaped branch A, and a microstrip line B with a gradually changing width is arranged in the middle; The layer includes a dielectric substrate (61) and a circular metal patch (62). The circular metal patch includes a ring and a four-leaf circle, and is printed on the lower surface of the dielectric substrate. The present invention can cover 1.65‑2.7GHz and 3.4‑ 3.6GHz dual-frequency working frequency band, stable radiation pattern, can effectively filter out interference signals, and can be used in 2G, 3G, 4G and 5G communication systems.

Description

technical field [0001] The invention belongs to the technical field of antennas, and in particular relates to a dual-polarization filtering base station antenna, which can be used for 5G wireless communication. Background technique [0002] With the vigorous development of the information age, in order to meet people's high-speed, large-capacity, and low-latency communication needs, communication equipment is rapidly updated and iterated. As a medium connecting end users, the base station antenna plays an important role in the mobile communication system and has made great contributions to the development of society. With the introduction of new concepts such as the "Internet of Everything" such as the Internet of Things and big data, 5G communication technology has emerged as the times require. The frequency bands of domestic 5G commercial technologies are mainly concentrated in the sub6 band. In order to save site resources and improve the utilization of space resources, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/24H01Q1/36H01Q1/38H01Q1/50H01Q1/52H01Q5/307H01Q5/50
CPCH01Q1/246H01Q1/36H01Q1/38H01Q1/50H01Q1/521H01Q5/307H01Q5/50
Inventor 刘海霞李志龙夏得校韩家奇高晓贺穆亚洁李龙
Owner XIDIAN UNIV
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