Multi-frequency dual-polarized antenna

A dual-polarized antenna and high-frequency technology, which is applied to the combination of antenna elements with different polarization directions and the structural form of radiation elements, etc., can solve the problems of discrete beam width, distortion of frequency point pattern, narrow bandwidth, etc., and achieve high-frequency bandwidth Effects of improved uniformity, improved cross-polarization, and reduced distortion

Active Publication Date: 2018-03-13
TONGYU COMM INC
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Problems solved by technology

[0004] For low frequencies, the beam width is very difficult to design. Due to the size limitation in the width direction, it is generally wide; while for high frequency bands, due to the influence of low frequency units, the beam width is very discrete, and the cross polarization index is difficult to meet general product specifications. Requirements, and due to the wide bandwidth of high frequency, the pattern of some frequency points will be distorted
The multi-frequency dual-polarization antenna structure of the prior art has a narrow bandwidth and a large windward area, volume, and mass

Method used

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Embodiment Construction

[0024] see figure 1 , 2 In the illustrated embodiment, the multi-frequency dual-polarized antenna of the present invention includes a reflector 11, two low-frequency radiation units 15 arranged on the reflector 11, and eight high-frequency radiation units 14 adjacent to the low-frequency radiation unit 15 An isolation frame 12 is arranged on the periphery of the high-frequency radiation unit 14 , and two layers of suspension bars 13 and suspension bar loading 17 are arranged above the isolation frame 12 . The high frequency radiation unit 14 also includes a high frequency parasitic radiator 16 .

[0025] The disconnection between the two layers of suspension strips and the loading of the suspension strips can effectively avoid low-frequency resonance. In addition, there is electrical coupling between adjacent suspension bars 13 and between the lowest layer of suspension bars and the isolation frame 12 .

[0026] In this embodiment, the suspension strips 13 and the suspensio...

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Abstract

The present invention provides a multi-frequency dual-polarized antenna, which includes a reflector, at least one low-frequency radiation unit disposed on the reflector, and at least one high-frequency radiation unit adjacent to the low-frequency radiation unit, the high-frequency radiation An isolation frame is arranged on the periphery of the unit, and at least one layer of suspension strips is arranged above the isolation frame. The multi-frequency dual-polarization antenna of the present invention adopts a new boundary structure, the consistency of high-frequency wave width is improved, the deformation is reduced, the cross-polarization is improved, and the cross-polarization of the high-frequency pattern is significantly improved.

Description

【Technical field】 [0001] The invention relates to the field of mobile communication base station antennas, in particular to a multi-frequency dual-polarization antenna. 【Background technique】 [0002] With the continuous development of mobile communication technology, the communication base station has put forward higher and higher requirements for the index requirements of the base station antenna, especially the gain, bandwidth characteristics, half-power angle fluctuation characteristics with frequency, and cross-polarization characteristics. [0003] Due to the current status of multi-mode mobile communication operations and the difficulty of site selection for base stations, multi-frequency base station antennas are the base station antenna products that are currently in great demand in the market. Multi-frequency antennas usually use a combination of high and low frequency antenna elements to achieve the required performance. However, due to the limitation of the volu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q21/24H01Q1/36
Inventor 韩波岳彩龙丁灿郭英杰黎伟韶石磊曹林利
Owner TONGYU COMM INC
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