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A wide-band dual-polarization low-profile compound wireless communication base station array antenna

An array antenna and wireless communication technology, which is applied to antenna unit combinations, antenna arrays, and antennas with different polarization directions. , the effect of low manufacturing cost

Active Publication Date: 2016-05-11
XINGDONG COMM TECH SUZHOU
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, in order to perform impedance matching, a matching network is generally added to the feed network, which will inevitably lead to a complex structure of the entire array antenna, or even a multi-layer structure, resulting in increased loss, reduced reliability, and increased cost.

Method used

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  • A wide-band dual-polarization low-profile compound wireless communication base station array antenna
  • A wide-band dual-polarization low-profile compound wireless communication base station array antenna
  • A wide-band dual-polarization low-profile compound wireless communication base station array antenna

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Embodiment Construction

[0009] Attached below figure 1 The present invention and its advantages are further described.

[0010] control figure 1 , The array antenna is printed on the epoxy substrate, the upper layer is the printed array unit and the feed network, the lower layer is the polytetrafluoroethylene dielectric substrate, followed by the air layer, and the bottom layer is the printed ground plane layer. The dielectric substrate is a composite dielectric substrate composed of air and polytetrafluoroethylene dielectric substrates. The array units are four types of angle-fed dual-polarized radiation patches. A total of 40 array units, half of the units adopt the direct feeding method, and the other half of the array units (the light-colored units in the figure) adopt the coupling feeding method, and the amplitude of the signal distributed by each array unit can be adjusted by adjusting the size of the coupling gap And the phase value, so as to achieve the purpose of beamforming. At the same...

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Abstract

The invention discloses a wide-frequency-band, dual-polarized, low-profile composite array antenna for a wireless communication base station. The array antenna comprises dual-polarized array units in various formats, a feeding method of composite array units, a composite feed network, and an array unit power distributing and impedance matching method based on the theory of transmission lines. The array antenna is characterized in that: the array units are composite array antennas formed by angular feed dual-polarized radiation chip units in four formats; partial array units employ a direct feed way while other array units employ a coupling feed way; the whole array is divided into a plurality of serially fed sub-arrays, then the plurality of serially fed sub-arrays form the composite feed array antenna by a parallel feed way; and on feed transmission lines, by changing the characteristic impedance of the transmission lines, power distribution and impedance matching design of the array units are carried out by utilizing the theory of transmission lines. The array antenna has the advantages of wide frequency band, dual polarization, low profile, shaped beam and the like.

Description

technical field [0001] The invention relates to a wireless communication base station array antenna. Specifically, it is a wide-band, dual-polarized, low-profile wireless communication base station array antenna. Background technique [0002] Array antennas for wireless communication base stations need to meet specific technical specifications, such as broadband, high efficiency, low profile, light weight, etc. For large-scale wireless local area network (WLAN) array base station antennas, in order to achieve dual polarization and broadband, a broadband dual polarization radiating unit with a complex structure is often used, and all array units are the same type of array unit; if the array If the antenna performs beamforming processing, the feed network will adopt a parallel feed or a compound feed mode in which a parallel feed and a series feed are mixed. At the same time, in order to perform impedance matching, a matching network is generally added to the feed network, w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q21/00H01Q21/24H01Q1/50
Inventor 何山红彭文峰
Owner XINGDONG COMM TECH SUZHOU
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