Unlock instant, AI-driven research and patent intelligence for your innovation.

Mechanical Antenna Array System Based on Rotating Permanent Magnets

A technology of antenna arrays and permanent magnets, applied in antenna arrays, antennas, electrical components, etc., can solve problems such as difficulty in increasing radiation intensity and difficulty in polarization of mechanical antenna charges, and achieve lightweight, weight reduction, and stability Effect

Active Publication Date: 2021-08-06
XIDIAN UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to propose a mechanical antenna array system based on rotating permanent magnets, to solve the problems of difficult charge polarization of electret and charged conductor plate mechanical antennas, and difficult improvement of radiation intensity in complex electromagnetic environments

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Mechanical Antenna Array System Based on Rotating Permanent Magnets
  • Mechanical Antenna Array System Based on Rotating Permanent Magnets
  • Mechanical Antenna Array System Based on Rotating Permanent Magnets

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1, an ultra-low frequency square structure mechanical antenna array system.

[0028] The system includes a rotating motor 1, a turntable 2, and an antenna array 3; the rotating motor 1 adopts a variable frequency motor, and is connected to the turntable 2 through its motor shaft 4; the radius of the turntable 2 is 50mm, and the thickness is 7.5mm; the antenna array 3 A square structure consisting of four permanent magnet antenna elements located in the same plane and with a phase difference of 90°, the length of the structure is adjustable within the range of 10mm-30mm, and the width is adjustable within the range of 10-30mm, such as figure 2 As shown, and fixed on the turntable 2 by a fixing piece; each antenna unit adopts a NdFeB square column permanent magnet with a length of 8mm, a width of 1.5mm, and a height of 1mm; adjust the speed of the frequency conversion motor at 0-3000 rpm Every second, that is, when the operating frequency of the rotating motor...

Embodiment 2

[0029] Embodiment 2, a very low frequency parallelogram structure mechanical antenna array system.

[0030] The system includes a rotating motor 1, a turntable 2, and an antenna array 3; the rotating motor 1 adopts a variable frequency motor, and is connected to the turntable 2 through its motor shaft 4; the radius of the turntable 2 is 100mm, and the thickness is 10mm; the antenna array 3 is The parallelogram structure is composed of four permanent magnet antenna units located in the same plane, and the length of two adjacent sides of the structure can be adjusted within the range of 10-50mm, such as image 3 As shown, the adjacent two interior angles of the parallelogram structure are 60° and 120° respectively; the antenna array is fixed on the turntable 2 through a fixing piece; Square cylindrical permanent magnet; adjust the speed of the variable frequency motor at 3000-6000 revolutions per second, that is, when the operating frequency of the rotating motor is at 3000-6000...

Embodiment 3

[0031] Embodiment 3, a binary parallel structure mechanical antenna array system.

[0032] The system includes a rotating motor 1, a turntable 2, and an antenna array 3; the rotating motor 1 adopts a variable frequency motor, and is connected to the turntable 2 through its motor shaft 4; the radius of the turntable 2 is 20mm, and the thickness is 5mm; the antenna array 3 is A parallel structure consisting of two square cylindrical permanent magnet antenna units located in the same plane, the distance between the permanent magnet units of this structure can be adjusted within the range of 10-15mm, such as Figure 4 As shown, and bonded on the turntable 2; each permanent magnet antenna unit adopts a NdFeB type square column permanent magnet with a length of 6mm, a width of 1mm, and a height of 0.5mm; adjust the rotating speed of the rotating motor 1 at 0-3000 rpm Every second, that is, when the operating frequency of the rotating motor is below 3000 Hz, the rotating motor 1 peri...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a mechanical antenna array system based on a rotating permanent magnet, which mainly solves the problems in the prior art that the mechanical antenna charges are difficult to polarize and the radiation intensity is low in a complex electromagnetic environment. It includes a rotating motor (1), a turntable (2), and an antenna array (3); the rotating motor is connected to the turntable through its motor shaft; the antenna array is composed of a plurality of permanent magnet antenna units located in the same plane with different shapes The geometry of the rotating motor is fixed on the turntable; the rotating motor periodically reciprocates to drive the antenna array to reciprocate. By adjusting the rotating speed of the rotating motor, the operating frequency of the rotating motor is changed to make the antenna array generate ultra-low frequency or very low frequency electromagnetic signals; By adjusting the spacing between the elements of the antenna array, the radiation intensity of the mechanical antenna system can be changed. The invention reduces the size of the antenna, improves the radiation intensity of the antenna system, and can be used for ultra-low frequency and very low frequency communication.

Description

technical field [0001] The invention belongs to the technical field of antennas, in particular to an antenna array system which can be used for ultra-low frequency and very low frequency communications. Background technique [0002] Due to the low frequency of ultra-low frequency and very low frequency electromagnetic wave signals, their corresponding wavelengths are very long, with strong penetrating performance and propagation performance, and can be transmitted underwater or in harsh environments, and can also be transmitted over long distances. For example, it can not only propagate underwater, in rocks, and metals, but also can carry out intercontinental propagation in the ionosphere, so it has very important applications. [0003] In recent years, while continuously researching and optimizing traditional antennas, researchers are actively seeking a new type of antenna that can adapt to different environments and can transmit or receive electromagnetic waves in differen...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01Q21/00H01Q3/02
CPCH01Q3/02H01Q21/00
Inventor 李娜弋秋平孙振远张进王钊张璐璐高格婷田雲歌
Owner XIDIAN UNIV