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Low-profile high-isolation differential dual-polarized slot antenna applied to 5G communication

A low-profile, antenna technology, applied in the direction of slot antenna, antenna, antenna coupling, etc., can solve the problems of complex structure, increased power loss, and inability to directly use differential circuits, etc., to achieve simplified structure, low cross polarization, and high isolation degree of effect

Active Publication Date: 2019-02-01
SHENZHEN SOUTH STAR TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the traditional dual-polarized antenna has only one feed port and cannot directly use a differential circuit, but needs to use a balun or other conversion device to be able to use a differential circuit to connect to a communication system
But this approach will increase additional power loss and complicate the structure

Method used

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  • Low-profile high-isolation differential dual-polarized slot antenna applied to 5G communication
  • Low-profile high-isolation differential dual-polarized slot antenna applied to 5G communication
  • Low-profile high-isolation differential dual-polarized slot antenna applied to 5G communication

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Embodiment

[0037] Such as figure 1 The shown AMC-based low-profile high-isolation dual-frequency dual-polarization slot antenna applied to 5G communication includes a reflective floor composed of periodically arranged square copper sheets 4 and a first dielectric plate 1 arranged above the center of the reflective floor , the second dielectric plate 2, a third dielectric plate 3 is provided under the reflective floor, a dipole is pasted on the first dielectric plate 1, and the dipole is powered by a coaxial line. On the first dielectric plate, the second The dielectric board and the third dielectric board are provided with a hole 22 for the passage of the coaxial line; the dipole on the first dielectric board 1 consists of a "cross" shaped microstrip line 11 with a "cross" shaped The slot 14 is composed of a circular radiation patch 13, and the ends of the "cross"-shaped slot of the radiation patch 13 are connected by a curved slender microstrip line.

[0038] Such as figure 2 As show...

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Abstract

The invention provides an AMC based low-profile high-isolation differential dual-polarized slot antenna applied to 5G communication. The antenna comprises the reflection floor and first and second dielectric plates arranged over the center of the reflection floor, a third dielectric plate is arranged under the reflection floor, the first dielectric plate is pasted with a dipole, the antenna further comprises an artificial magnetic conductor structure which is composed of the second dielectric plate, circular ring shaped copper sheets arranged regularly in the upper surface of the second dielectric plate, the third dielectric plate, a square copper sheet arranged on the third dielectric plate and an air cavity between the second and third dielectric plates, and the upper surface of the second dielectric plate includes the surface of the artificial magnetic conductor and is composed of the 64 circular ring shaped copper sheets arranged regularly. The antenna is characterized by broadband, the bandwidths of two ports of the antenna cover 3.28-5.31GHz (47.3%) and 3.29-5.32GHz (47.2%) respectively, and the antenna can be applied to 5G microwave communication. High-isolation and low cross polarization are realized, and a 1*4 high-gain antenna array is realized via a differential feed network.

Description

[technical field] [0001] The invention belongs to the technical field of communication, and in particular relates to a low-profile high-isolation differential dual-polarization slot antenna and an array thereof applied to 5G communication. [Background technique] [0002] In modern mobile communication systems, dual-polarized antennas have attracted much attention. On the one hand, using dual-polarization technology, the antenna can widen its channel capacity; on the other hand, the dual-polarization antenna can effectively reduce the effect of multipath fading. [0003] With the rapid development of mobile communication technology, wireless communication systems have higher and higher requirements for antenna performance. In order to meet the needs of wireless communication systems, researchers have invested a lot of energy in the design and development of dual-polarized antennas. But at this stage, the development of dual-polarized antennas still faces many problems that ...

Claims

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Application Information

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IPC IPC(8): H01Q13/10H01Q1/38H01Q1/48H01Q1/50H01Q1/52H01Q15/14
CPCH01Q1/38H01Q1/48H01Q1/50H01Q1/52H01Q13/10H01Q15/14
Inventor 冯波涛何晓媛周宇
Owner SHENZHEN SOUTH STAR TECH
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