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Compact multi-frequency base station antenna array

A base station antenna, compact technology, applied in the direction of antenna arrays, antenna arrays that are energized separately, antennas, etc., can solve the problems of large mutual coupling and complex structure of multi-frequency base stations, and achieve simple circuit structure, low cost, and reduced effect of complexity

Inactive Publication Date: 2016-11-09
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a compact multi-frequency base station antenna array to overcome the defects of large mutual coupling or complex structure of multi-frequency base stations in the prior art

Method used

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  • Compact multi-frequency base station antenna array
  • Compact multi-frequency base station antenna array
  • Compact multi-frequency base station antenna array

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Embodiment Construction

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0035] An embodiment of the present invention provides a compact multi-frequency base station antenna array, including multiple sub-arrays arranged on a substrate, such as the first sub-array, the second sub-array...the Nth sub-array (N≥2, N is a natural number ). Wherein the first sub-array works in the first frequency band, the second sub-array works in the second frequency band, ..., the Nth sub-array works in the Nth frequency band, and the first frequency band, ...

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Abstract

The invention discloses a compact multi-frequency base station antenna array, which comprises a first sub-array and a second sub-array. The first sub-array and the second sub-array are arranged on a substrate. The first sub-array works at a first frequency band, and the second sub-array works at a second frequency band different from the first frequency band. The first sub-array comprises at least one first filtering antenna unit without an additional loss circuit. The second sub-array comprises at least one second filtering antenna without an additional loss circuit. According to the embodiment of the present invention, the filtering antenna units without any additional loss circuit are used as the array elements of the multi-frequency base station antenna array. Therefore, the mutual coupling between a plurality of sub-arrays similar to one another in working frequency band can be reduced by using the filtering characteristics thereof. Moreover, no duplexer or decoupling network is required, so that the design complexity of the duplexer or the decoupling network is reduced. The compact multi-frequency base station antenna array is simple in circuit structure, and simple and convenient in design. Meanwhile, the low-cost PCB technology can be adopted, and the cost is low.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a compact multi-frequency base station antenna array. Background technique [0002] With the rapid development of mobile communication technology, it is often required in the construction of base station antennas that the array antenna not only covers multiple frequency bands, but also supports multiple wireless system systems. When designing dual-frequency or multi-frequency base station array antennas, if the frequency intervals of different frequency bands are large, such as the GSM frequency band (820-960MHz) and the 3G frequency band (1710-2170MHz), at this time, two columns are commonly used to work in the corresponding frequency bands. The sub-arrays are arranged together to design an array antenna. However, once the frequency interval of the two wireless frequency bands is very close, such as the DCS frequency band (1710-1880MHz) and the WCDMA frequency band (1920-217...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q21/08H01Q21/30
CPCH01Q1/38H01Q21/065H01Q21/08H01Q21/30H01Q1/246H01Q1/523H01Q5/30H01Q9/0414H01Q9/0457
Inventor 章秀银张垚潘咏梅
Owner SOUTH CHINA UNIV OF TECH
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