Dual-polarized array antenna with high polarization isolation

A polarization isolation and array antenna technology, which is applied to the combination of antenna units with different polarization directions, antenna coupling, antenna grounding switch structure connection, etc., can solve the problems of inability to apply broadband array antennas and narrow working bandwidth, and achieve cross-polarization Good polarization ratio maintenance, improved polarization isolation, and compact structure

CN106816698BInactive Publication Date: 2019-04-16CHONGQING UNIV +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2019-04-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a dual polarization array antenna with high polarized isolation; the dual polarization array antenna comprises two radiation pasters, a [pi] type mutual coupling suppression structure arranged between the two radiation pasters, a parasitic coupled floor and a grounding capacitive loading ring; the grounding capacitive loading ring is vertically arranged on the parasitic coupled floor; the [pi] type mutual coupling suppression structure and the grounding capacitive loading ring are mutually vertical to each other. The antenna adds the [pi] type mutual coupling suppression structure between the array elements, thus effectively improving the antenna polarized isolation, and keeping other performance of the antenna to be well.
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Description

technical field

[0001] The invention relates to an antenna structure, in particular to a dual-polarized array antenna with high polarization isolation that can be applied to a 5G communication system. Background technique

[0002] Multiple-input multiple-output technology can increase the data capacity by increasing the number of channels and improve the adaptability of the system. Compared with the traditional method of increasing the frequency band and power, it has huge advantages and will become an important component of the upcoming 5G communication technology. part. At present, with the further development of MIMO technology, higher and higher requirements are put forward for the mutual coupling suppression of components.

[0003] There are already many methods to effectively improve mutual coupling suppression (polarization isolation), but most of the methods can only be applied to single-polarized array antennas; for mutual coupling suppression networks, the working...

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Embodiment Construction

[0030] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings; it should be understood that the preferred embodiments are only for illustrating the present invention, rather than limiting the protection scope of the present invention.

[0031] figure 1 It is a three-dimensional view of the overall structure of the dual-polarized array antenna with high polarization isolation of the present invention, figure 2 It is an overall three-dimensional view of the dual-polarized array antenna mutual coupling suppression structure with high polarization isolation of the present invention. Such as figure 1 , 2 As shown, the dual-polarized array antenna with high polarization isolation includes an upper dielectric substrate, a multilayer printed circuit board 7 and a lower metal carrier arranged from top to bottom, the upper dielectric substrate and the multilayer printed circuit board An air layer 3 is formed...