Broadband miniaturized dual-polarized antenna

A dual-polarized antenna and broadband technology, applied in antennas, slot antennas, antenna grounding devices, etc., can solve the problems of unstable gain, narrow antenna bandwidth, complex processing, etc., to achieve accurate phase difference, reduce operating frequency, and broaden impedance The effect of bandwidth

Active Publication Date: 2019-10-22
DALIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of existing base station antennas such as narrow bandwidth, unstable gain, large volume, and complicated processing, the present invention proposes a broadband miniaturized dual-polarized antenna

Method used

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  • Broadband miniaturized dual-polarized antenna
  • Broadband miniaturized dual-polarized antenna
  • Broadband miniaturized dual-polarized antenna

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with specific examples.

[0030] figure 1 It is a structural schematic diagram of a broadband miniaturized dual-polarized antenna in the present invention. A broadband miniaturized dual-polarized antenna, including 4 slot antennas 1A, 2B, 3C, 4D, 8 inductance lines 5, 4 downwardly bent metal sheets 6, 4 metallized via holes 7A, 8B, 9C, 10D, 4 microstrip lines 11A, 12B, 13C, 14D, two FR4 dielectric boards 15A, 16B, two coaxial lines 17A, 18B, metal reflector 19, air bridge 20 and nylon column 21. The thickness of the FR4 dielectric board is 0.8mm. The four dual-polarized antenna microstrip lines 8A, 9B, 10C, and 11D are arranged in a "cross" shape.

[0031] The microstrip lines 11A and 12B are printed on the front of the dielectric board 15A, the microstrip line 11A is connected to the inner conductor of the coaxial line 17A, and the microstrip line 12B is connected to the inner conductor of the coax...

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Abstract

The invention discloses a broadband miniaturized dual-polarized antenna, which belongs to the technical field of communication. The broadband miniaturized dual-polarized antenna comprises four slot antennas, eight inductor wires, four downward bent metal sheets, four metallized via holes, four microstrip lines, two FR4 dielectric boards, two coaxial lines, a metal reflection board, an air bridge and a nylon column, wherein two microstrip lines are printed on the front surface of one dielectric board and are connected with the inner conductor of the coaxial line respectively, the other two microstrip lines are printed on the back surface of the other dielectric board and are connected with the outer conductor of the coaxial line respectively, and isolation through the air bridge is carriedout at the dielectric board back intersection; the tail end of the microstrip line is connected with a ground board outside the slot antenna through the metallized via hole; the four microstrip linesform two broadband differential baluns for feeding the slot antennas; the two FR4 dielectric boards are fixed through the nylon column; and the metal reflection board is placed at the lower side of the dielectric board. The working bandwidth of the antenna is effectively broadened, the size of the antenna is reduced, and high isolation and high gain stability are realized.

Description

technical field [0001] The invention belongs to the technical field of communication, and relates to a broadband miniaturized dual-polarization antenna for base station communication. Background technique [0002] With the rapid development of mobile broadband services, various applications such as video and Internet of Things emerge in an endless stream, and the demand for user traffic increases rapidly. Dual-polarized antennas are widely used in wireless communication systems. In urban areas with relatively dense buildings, electromagnetic waves reach the receiver through different propagation paths due to multiple reflections from buildings, resulting in multipath fading. Dual-polarized antennas adopt polarization diversity technology, which can not only resist the influence of multipath fading, but also improve spectral efficiency, increase channel capacity, and save space, thereby improving communication quality, and are widely used in base station communications. In m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q13/10H01Q19/10H01Q1/50H01Q1/48H01Q5/10H01Q5/28H01Q5/307H01Q5/321
CPCH01Q1/48H01Q1/50H01Q5/10H01Q5/28H01Q5/307H01Q5/321H01Q13/103H01Q13/106H01Q19/104
Inventor 周长飞李慧
Owner DALIAN UNIV OF TECH
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