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Frequency-reconfigurable electrically driven liquid metal dipole antenna

A technology of dipole antenna and liquid metal, which is applied in the direction of antenna, resonant antenna, antenna grounding switch structure connection, etc., can solve the problems of complex structure, low precision and low degree of automation of liquid metal reconfigurable antenna, and achieve simple structure , high precision, resource saving effect

Active Publication Date: 2020-01-10
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of complex structure, low degree of automation and low precision of the existing liquid metal reconfigurable antenna adjusted by mechanical means, the present invention proposes an electrically driven liquid metal dipole antenna with reconfigurable frequency

Method used

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  • Frequency-reconfigurable electrically driven liquid metal dipole antenna
  • Frequency-reconfigurable electrically driven liquid metal dipole antenna
  • Frequency-reconfigurable electrically driven liquid metal dipole antenna

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specific Embodiment approach 1

[0021] Specific embodiment 1: The frequency-reconfigurable electrically driven liquid metal dipole antenna of this embodiment consists of a first antenna arm 1, a second antenna arm 2, a first inductor 3, a second inductor 4, a power supply 5, and a biaser. 6 and coaxial feeder group 7 constitute;

[0022] The first antenna arm 1 and the second antenna arm 2 are elongated, the first antenna arm 1 is provided with a first channel 9 along the length direction, and both ends of the first channel 9 are respectively provided with a first liquid storage tank 8; The antenna arm 2 is provided with a second channel 11 along the length direction. The two ends of the second channel 11 are respectively provided with a second liquid storage tank 10; the first channel 9 communicates with the first liquid storage tank 8 at both ends of the second channel 11 Connected to the second liquid storage tank 10 at both ends thereof; the first channel 9 and the second channel 11 have the same shape and ...

specific Embodiment approach 2

[0029] The second embodiment is different from the first embodiment: the ratio of the width of the first liquid storage tank 8 to the width of the first channel 9 is (10-11):1, and the first liquid storage tank 8 The opening of the first channel 9 opens toward the end, and the opening of the first reservoir 8 is larger than the end opening of the first channel 9, the opening sidewall of the first reservoir 8 and the end of the first channel 9 are open The side walls are connected by the first transition plate 12; the ratio of the width of the second liquid storage tank 10 to the width of the second channel 11 is (10-11):1, and the opening of the second liquid storage tank 10 faces the second channel 11 The end opening of the second liquid storage tank 10 is larger than the end opening of the second channel 11, the opening side wall of the second liquid storage tank 10 opening and the end opening side wall of the second channel 11 pass through the second transition The board 13 ...

specific Embodiment approach 3

[0030] Specific embodiment three: This embodiment is different from specific embodiment one or two in that: the volume ratio of the NaOH solution to the gallium-based liquid metal is (10-20):1; the total volume of the NaOH solution and the gallium-based liquid metal It accounts for 80-100% of the total volume of the liquid storage tank and the channel. The other steps and parameters are the same as in the first embodiment.

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Abstract

The invention discloses a frequency-reconfigurable electrically driven liquid metal dipole antenna and belongs to the field of electrically-driven liquid metal dipole antennas. The invention aims to solve the problems of complex structure, low automation degree and low precision of a liquid metal reconfigurable antenna adjusted in a mechanical mode. The frequency-reconfigurable electrically drivenliquid metal dipole antenna is composed of a first antenna arm, a second antenna arm, a first inductor, a second inductor, a power source, a bias device and a coaxial feeder set; and each of first antenna arm and the second antenna arm is internally provided with a channel and liquid storage tanks, wherein the channel is filled with a NaOH solution, and the liquid storage tank at one end of the channel is filled with gallium-based liquid metal. According to the frequency-reconfigurable electrically driven liquid metal dipole antenna of the invention, the reconstruction of antenna frequencieswithin a certain range can be achieved just by providing small voltages. The antenna is simple in structure. The change of the length of the liquid metal is realized through electric field driving, and therefore, high accuracy and high precision can be realized.

Description

Technical field [0001] The invention relates to an electrically driven liquid metal dipole antenna. Background technique [0002] With the development of information technology, wireless communication systems have played a vital role in national defense and life. In recent years, the rapid development of wireless communication system functions urgently requires antenna transmission systems to realize multi-function and multi-working mode signal transmission. According to the traditional antenna design model, combining multiple antennas with specific performance into one device will inevitably bring about a series of problems. For example, multi-antennas and multi-subsystems make the system larger in size, heavier in quality, and occupy more space; the antenna density of the same system increases, electromagnetic coupling interference between antennas becomes serious, and the overall performance of the wireless communication system decreases. Therefore, it is necessary to realiz...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q9/20H01Q1/36H01Q1/50H01Q5/321
CPCH01Q1/36H01Q1/50H01Q9/20H01Q5/321
Inventor 黄永江杨智琴林澍李志超孙剑飞
Owner HARBIN INST OF TECH