Compact type wideband dual-polarized omnidirectional antenna

An omnidirectional antenna, dual-polarization technology, applied in antenna unit combinations, antennas, antenna arrays and other directions with different polarization directions, can solve the problem that miniaturization cannot meet the needs of base station communication antennas, etc., and achieves superior performance, good isolation, and structure. simple effect

Inactive Publication Date: 2018-02-23
XUZHOU NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The bandwidth and miniaturization of the existing antennas cannot meet the requirements of base station communication antennas. Therefore, how to design a dual-polarized broadband antenna that satisfies the characteristics of wide bandwidth, dual polarization, omnidirectional, and miniaturization has become an important issue at present. Research Hotspots and Difficulties

Method used

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  • Compact type wideband dual-polarized omnidirectional antenna
  • Compact type wideband dual-polarized omnidirectional antenna
  • Compact type wideband dual-polarized omnidirectional antenna

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Embodiment Construction

[0020] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] Such as figure 1 Shown is the compact wideband dual-polarized omnidirectional antenna of the present invention, comprising inverted conical monopole antenna 1, crossed butterfly antenna (Bowtie) 2, inverted conical monopole antenna 1 realizes vertical polarization, crossed butterfly Shaped antenna 2 realizes horizontal polarization. Inverted cone monopole antenna 1 and crossed butterfly antenna 2 are respectively fed by a 50-ohm SMA connector and a 90-degree broadband feed network. Vertical polarization and horizontal polarization are combined by a circular floor 4 metal ground Together.

[0022] The inverted cone monopole antenna 1 is connected to the circular floor 4 through an SMA connector, and the crossed butterfly antenna 2 is connected to the feeding structure on the feeding medium substrate 3 , and the middle ...

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Abstract

The invention discloses a compact type wideband dual-polarized omnidirectional antenna, which comprises an inverted-cone monopole antenna and a cross bow-tie antenna, wherein the inverted-cone monopole antenna realizes vertical polarization and the cross bow-tie antenna realizes horizontal polarization, the inverted-cone monopole antenna is fed by means of an SMA connecter, and the cross bow-tie antenna is fed by means of a wideband feeding network; the vertical polarization and horizontal polarization are combined by means of a piece of circular metal; and the cross bow-tie antenna serves asa radiator as well as a floor of the inverted-cone monopole antenna, thereby reducing the size of the antenna. The compact type wideband dual-polarized omnidirectional antenna has a bandwidth of about44% and isolation being at least 19 dB, and has a good omnidirectional directivity diagram in the full spectrum band.

Description

technical field [0001] The invention relates to an antenna, in particular to a compact broadband dual-polarized omnidirectional antenna. Background technique [0002] Dual-polarized broadband antennas are often used in communication systems, but with the development of technology, existing antennas cannot meet the system's requirements for antenna bandwidth, pattern, and size. According to the existing data at home and abroad, in order to realize the dual-polarization omnidirectional pattern, the most direct and effective way is to combine two single-polarization antennas. Coaxial collinear antennas, dipoles, and cavity loop antennas are commonly used to achieve vertically polarized omnidirectional patterns, but they are all narrowband antennas. In order to improve the bandwidth, an antenna with an inverted tapered structure is proposed, which realizes the characteristics of low profile and wide bandwidth. In order to realize the omnidirectional pattern of horizontal polar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/36H01Q1/48H01Q21/00H01Q21/24
CPCH01Q1/48H01Q1/36H01Q21/0006H01Q21/24
Inventor 赵雷王俊
Owner XUZHOU NORMAL UNIVERSITY
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