Ultra-low frequency mechanical antenna array with modulatable phase amplitude

An antenna array and ultra-low frequency technology, which is applied in the field of ultra-low frequency mechanical antenna arrays, can solve the problem that the amplitude and phase of electromagnetic waves cannot be modulated, and achieve the effect of reducing power consumption and

Active Publication Date: 2020-05-15
DALIAN JIAOTONG UNIVERSITY +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (2) For a mechanical antenna with a single permanent magnet rotation, the electromagnetic wave amplitude and phase cannot be modulated

Method used

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  • Ultra-low frequency mechanical antenna array with modulatable phase amplitude
  • Ultra-low frequency mechanical antenna array with modulatable phase amplitude
  • Ultra-low frequency mechanical antenna array with modulatable phase amplitude

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Embodiment Construction

[0024] In order to make the technical solutions and advantages of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the drawings in the embodiments of the present invention:

[0025] figure 1 It is a schematic diagram of an ultra-low frequency mechanical antenna array whose phase amplitude can be modulated according to the present invention; figure 2 It is a structure diagram of an ultra-low frequency mechanical antenna array whose phase amplitude can be modulated according to the present invention; an ultra-low frequency mechanical antenna array whose phase amplitude can be modulated includes:

[0026] Including an ultra-low frequency magnetic field generating module 21 and an ultra-low frequency magnetic field control module 20;

[0027] The ultra-low frequency magnetic field generating module 21 generates a static magnetic field;

[0028] The ultra-low frequ...

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Abstract

The invention discloses an ultra-low frequency mechanical antenna array with an adjustable phase amplitude, and belongs to the technical field of ultra-low frequency wireless communication. The arraycomprises an ultra-low frequency magnetic field generation module and an ultra-low frequency magnetic field control module, the ultra-low-frequency magnetic field generation module generates a staticmagnetic field; the ultra-low frequency control module generates a static magnetic field periodic change by controlling the ultra-low frequency magnetic field generation module so as to generate an amplitude and phase modulatable time-varying magnetic field, the ultra-low frequency control module comprises a motor controller and an upper computer, and the upper computer communicates with the motorcontroller according to the phase and amplitude of the magnetic field to be modulated. Compared with the existing mechanical antenna, the permanent magnet is used for generating a static magnetic field, the motor drives the soft magnetic material turntable to rotate to form an alternating magnetic field in a multiple relationship with the working frequency of the motor, the power consumption andthe mechanical structure design difficulty are reduced, and the amplitude and phase of the generated ultra-low frequency electromagnetic wave are modulated by controlling the start and stop of the mechanical antenna array element and the relative position of the turntable during rotation.

Description

technical field [0001] The invention relates to ultra-low frequency wireless communication technology, in particular to an ultra-low frequency mechanical antenna array whose phase amplitude can be modulated. Background technique [0002] Ultra-low frequency (ULF) refers to electromagnetic waves with a frequency of 0.3-3Khz. Ultra-low frequency (ULF) electromagnetic waves are of great value in both commercial and military applications. Their outstanding advantage is that they can penetrate conductive materials such as water, soil, and rocks. The attenuation is small, and it has obvious advantages in ground-penetrating communication, underground communication, and underwater communication. The traditional antenna forms a changing electric field by driving the movement of electrons in the antenna conductor, and then induces a changing magnetic field. The working frequency determines the geometric size of the antenna, and the length of the antenna is usually required to be a qua...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q3/28H01Q3/30H01Q21/00
CPCH01Q3/28H01Q3/30H01Q21/00
Inventor 王晓煜周鑫张雯厚曹振新全鑫
Owner DALIAN JIAOTONG UNIVERSITY
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