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Circularly polarized antenna and manufacturing method thereof

A technology of circularly polarized antennas and squares, applied in the field of circularly polarized antennas and the preparation of the circularly polarized antennas, can solve the problems of engineering inconvenience due to particularity and complexity, cannot meet the requirements of miniaturization, etc., and achieve the manufacturing process Simple, Wide Beam Low Axis Ratio Effect

Inactive Publication Date: 2017-06-13
中电科微波通信(上海)股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The structure of the spin-based circularly polarized microstrip antenna is simple, and the shape of the patch is a square. The microstrip antenna generally uses a special mechanical structure to achieve circularly polarized radiation, such as: patch corner cutting, patch digging, 90-degree shift phase feed network, etc., but the particularity and complexity of these structures bring a lot of inconvenience to the project
[0005] In addition, with the miniaturization of communication equipment today, the size requirements of L-band and S-band microwave devices and antennas are becoming more and more miniaturized and integrated, so materials with relatively low dielectric constants such as silicon can no longer meet the requirements of miniaturization. requirements

Method used

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  • Circularly polarized antenna and manufacturing method thereof
  • Circularly polarized antenna and manufacturing method thereof
  • Circularly polarized antenna and manufacturing method thereof

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preparation example Construction

[0027] A method for preparing a circularly polarized antenna, comprising the following steps:

[0028] Step 1, perforating at the predetermined position of the feeding hole of the square dielectric substrate, the predetermined position is calculated according to the dielectric constant, the operating frequency of the antenna and the size of the square using a three-dimensional structural electromagnetic field simulation software. In this embodiment , the three-dimensional structural electromagnetic field simulation software is HFSS electromagnetic field professional software;

[0029] Step 2, evenly spraying a magnetic material on a square side of the square dielectric substrate to form a magnetic film with a thickness not greater than 5um, wherein the material of the magnetic film has a dielectric constant higher than 10 and a magnetic permeability higher than 1 s material;

[0030] Step 3, setting the square radiation patch on the magnetic film to obtain a circularly polari...

Embodiment 1

[0032] figure 1 In Embodiment 1 of the present invention, the circularly polarized antenna is fed through a microstrip transmission line.

[0033] Such as figure 1 As shown, the circularly polarized antenna 10 is fed through the microstrip transmission line 11, and the microstrip transmission line 11 uses an SMA head to feed the feed point. The circularly polarized antenna 10 includes: a dielectric substrate 12 , a magnetic film 13 and a radiation patch 14 .

[0034] The dielectric substrate 12 is in the shape of a square, and a feeding hole for the microstrip transmission line 11 to pass through is provided at a predetermined position, and the feeding hole is a feeding point. The material of the dielectric substrate is a composite material. The predetermined position is calculated according to the dielectric constant, the working frequency of the antenna and the size of the square using a three-dimensional structure electromagnetic field simulation software. In this embodi...

Embodiment 2

[0041] figure 2 In Embodiment 2 of the present invention, the circularly polarized antenna is fed through the coaxial probe.

[0042] Such as figure 2 As shown, the circularly polarized antenna 20 is fed through the coaxial probe 21, and the coaxial probe 21 uses an SMA head to feed the feeding point. The circularly polarized antenna 20 includes: a dielectric substrate 22 , a magnetic film 23 and a radiation patch 24 .

[0043] The dielectric substrate 22 is in the shape of a square, and a feeding hole for the coaxial probe 21 to pass through is provided at a predetermined position, and the feeding hole is a feeding point.

[0044] The magnetic thin film 23 is evenly coated on one square side of the dielectric substrate 22 . The thickness of the magnetic film is not greater than 5um, and the material of the magnetic film is a material with a dielectric constant higher than 10 and a magnetic permeability higher than 1. In the first embodiment, the magnetic thin film 23 is...

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Abstract

The invention provides a circularly polarized antenna and a manufacturing method thereof. The circularly polarized antenna comprises a dielectric substrate which is in a square shape, a magnetic film uniformly coating one square side face of the dielectric substrate and a square radiation paster arranged on the magnetic film and connected with feed, wherein the a feed hole for enabling feed to penetrate is formed in the preset position, the feed hole is a feed point, the thickness of the magnetic film is not larger than 5 micrometers, the dielectric constant of the material of the magnetic film is higher than 10, and the magnetic conductivity of the material of the magnetic film is higher than 1.

Description

technical field [0001] The invention relates to a patch antenna, in particular to a circularly polarized antenna and a preparation method of the circularly polarized antenna. Background technique [0002] As we all know, in the modern society with rapid development of science and technology, the functions of almost all microwave components, including antennas, are realized by utilizing and controlling the movement of electrons. However, due to the limitation of the characteristics of the electron itself, the structure and integration of microwave devices with microstrip structure have reached the limit state. In particular, microstrip antennas generally achieve circular polarization characteristics through special specifications and shapes. So far, no special materials have been directly used to achieve circular polarization characteristics. Therefore, people hope to obtain new materials that can freely obtain the rotation characteristics of the electromagnetic field, just ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q13/08
CPCH01Q1/38H01Q13/08
Inventor 包乌云徐朝勇
Owner 中电科微波通信(上海)股份有限公司