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Parallel feed array antenna

An array antenna and parallel connection technology, applied in the field of array antenna, can solve problems such as narrow working bandwidth, beam pointing deviation, antenna can not meet broadband, high gain application, etc., to achieve the effect of optimal design and control, and increase gain

Inactive Publication Date: 2012-01-18
张家港保税区国信通信有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitation of the structural form of this type of antenna, most of the working bandwidth is relatively narrow
An obvious disadvantage of the series feed antenna array is that the beam pointing shifts with the frequency change, the greater the working frequency deviates from the center frequency, the greater the beam deviation, and the greater the impact on the use
Therefore, this type of antenna cannot meet the requirements of broadband, high-gain applications

Method used

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Embodiment Construction

[0016] see Figure 1~4 , a parallel feeding array antenna related to the present invention, the array antenna includes a plurality of antenna units 1 and a feeding network 2, the plurality of antenna units 1 are connected in parallel to the feeding network 2, the feeding The network 2 is formed by cascading multiple power dividers, the antenna unit 1 is connected to the feeding network 2 through a coaxial cable, and the multiple power dividers are connected through a coaxial cable.

[0017] in, figure 1 For a specific example:

[0018] The feed network 2 is composed of: the input port of the power divider one 3.1 divided into two is the input port of the whole feed network, the output port of the power divider one 3.1 is respectively connected with the power divider two 3.2 and one divider three divided into three The input ports of the divided power divider three 3.3 are connected, and the output ports of the power divider two 3.2 and the power divider three 3.3 are respect...

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Abstract

The invention relates to a parallel feed array antenna which comprises antenna units (1) and a feed network (2); a plurality of antenna units (1) are arranged; the antenna units (1) are parallelly connected and are connected with the feed network (2); the feed network (2) is formed by a plurality of power distributors which are mutually cascaded; the antenna units (1) and the feed network (2) are connected through coaxial cables; and the power distributors are connected through the coaxial cables. The invention relates to the parallel feed array antenna which has the characteristics of wide bandwidth and high gain.

Description

(1) Technical field [0001] The invention relates to an array antenna, in particular to an array antenna used in a parallel feeding mode for a mobile communication base station. (2) Background technology [0002] At present, most of the commonly used omnidirectional antennas adopt series feeding. For example, antennas, waveguides, and coaxial slotted arrays formed by connecting multiple sections of coaxial oscillators in series. They all increase the gain by increasing the radiation unit in the axial direction. This type of antenna is widely used in fields such as mobile communication and radar. Because this type of antenna is limited by the structural form, most of the working bandwidth is relatively narrow. An obvious disadvantage of the series feed antenna array is that the beam pointing shifts with the frequency change, the greater the working frequency deviates from the center frequency, the greater the beam deviation, and the greater the impact on use. Therefore, th...

Claims

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Application Information

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IPC IPC(8): H01Q21/00H01Q23/00
Inventor 姜盼徐伟彪蔡璐
Owner 张家港保税区国信通信有限公司