A Broadband Grid Antenna Array

An antenna array and grid technology, which is applied in the field of wireless communication, can solve the problems of increasing the processing cost and complexity of the antenna, and achieve the effects of saving the production cost, simplifying the feeding network and simplifying the feeding network.

Inactive Publication Date: 2017-01-04
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] 2) In 2011, YueHui Cui et al. published an article titled "Novel Dual-Broadband Planar Antenna and Its Array for 2G / 3G / LTE Base Stations" on IEEE TRANSACTIONS ON ANTENNAS ANDPROPAGATION, and proposed an antenna array for base stations , the antenna has two radiation bands of low frequency and high frequency, which can meet the frequency band requirements of 2G / 3G / LTE, but this antenna array requires a complex feeding network, which increases the processing cost of the antenna

Method used

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  • A Broadband Grid Antenna Array
  • A Broadband Grid Antenna Array
  • A Broadband Grid Antenna Array

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Such as Figure 1 ~ Figure 4 As shown, the broadband grid antenna array of the present embodiment includes a reflective floor 1, a coaxial line 2 and four radiation units 3 erected on the reflective floor 1, and the reflective floor 1 and the four radiation units 3 all adopt PCB boards ( The dielectric constant of the medium is 2.55), and the shapes are all rectangular; the upper layer of the reflective floor 1 is provided with four microstrip transmission lines 4 connecting each radiation unit 3, and the lower floor is a metal floor; two of the four radiation units 3 The radiating units 3 are arranged vertically, and two radiating units 3 are arranged horizontally (that is to say, the radiating units 3 arranged vertically have one column, and the radiating units 3 arranged horizontally have one row), and together form a grid antenna array on the reflective floor 1; The length of each microstrip transmission line 4 is one-half of the wavelength corresponding to the cent...

Embodiment 2

[0036] Such as Figure 7 As shown, on the basis of the structure of Embodiment 1, the horizontal expansion is carried out to form a grid antenna array of ten radiation units 3 on the reflective floor 1. It can be seen that the radiation units 3 arranged in the vertical direction have three columns, and the radiation units arranged in the horizontal direction 3 has three rows.

Embodiment 3

[0038] Such as Figure 8 As shown, on the basis of the structure of Embodiment 1, horizontal and vertical expansion are carried out simultaneously, and a grid antenna array of sixteen radiating units 3 is formed on the reflective floor 1. It can be seen that there are five columns of radiating units 3 arranged vertically. There are five rows of radiation units 3 arranged laterally.

[0039] In the above-mentioned embodiment, the PCB board adopted by the reflector and each radiation unit can be made of any dielectric material of FR4, polyimide, polytetrafluoroethylene glass cloth and co-fired ceramics; the metal floor, radiation The metal used for the patches and metal sheets is any one of aluminum, iron, tin, copper, silver, gold and platinum, or any alloy of aluminum, iron, tin, copper, silver, gold and platinum.

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Abstract

The invention discloses a broadband grid antenna array, which includes a reflective floor and a plurality of radiation units erected on the reflective floor. The upper layer of the reflective floor is provided with a plurality of microstrip transmission lines connecting each radiation unit. The plurality of A radiating unit forms a grid antenna array on the reflective floor; the front and back sides of each radiating unit are covered with radiation patches, and a section of the radiation patch is corroded to expose the medium at the bottom of the front and back sides of each radiating unit part, the left and right ends of the exposed dielectric part are respectively pasted with metal sheets, and the two ends of the metal sheets are respectively connected with the radiation patch and the microstrip transmission line; holes, and the plurality of via holes run through the radiation patches on the front and back sides of the radiation unit. The antenna array feeding network of the invention is simple, has the characteristics of wide frequency band, easy processing, low cost and the like, and can meet the requirements of the broadband communication system.

Description

technical field [0001] The invention relates to an antenna array, in particular to a broadband grid antenna array, which belongs to the field of wireless communication. Background technique [0002] Antenna is a device used to transmit and receive electromagnetic waves in wireless devices. Anything that uses electromagnetic waves to transmit information relies on antennas to work. With the continuous development of communication technology, the amount of information transmitted in wireless communication is increasing, and the requirements for antennas are also getting higher and higher. Antennas are developing in the direction of broadband, intelligence, low profile, and low cost. Most of the currently used antenna arrays need to add a feed network to ensure the performance of the antenna, but this will not only increase the return loss of the antenna but also increase the cost of the antenna, making the structure of the antenna complicated; while the grid antenna It is a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q21/00H01Q1/36H01Q1/48
Inventor 王世伟孙光华黄启凯褚庆昕
Owner SOUTH CHINA UNIV OF TECH
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