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A low frequency antenna

An antenna and low-frequency technology, applied in the field of low-frequency antennas, can solve the problems of large volume of low-frequency antennas, and achieve the effect of reducing the volume

Active Publication Date: 2020-04-21
武汉船舶通信研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the problem of large volume of existing low-frequency antennas, the embodiment of the present invention provides a low-frequency antenna

Method used

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  • A low frequency antenna
  • A low frequency antenna
  • A low frequency antenna

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Embodiment Construction

[0028] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0029] figure 1 is a schematic structural diagram of a low-frequency antenna provided by an embodiment of the present invention, figure 2 yes figure 1 Partial sectional view in . combine figure 1 and figure 2 , the low-frequency antenna includes a support frame 20 and n charge plate arrays 400 .

[0030] The support frame 20 includes a central shaft 21, a first support frame 22 and a second support frame 23, the first support frame 22 and the second support frame 23 are both arranged on the central shaft 21, and the first support frame 22 is configured to have a lock Locked state and unlocked state, when the first support frame 22 is in the locked state, the first support frame 22 and the second support frame 23 can rotate synch...

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Abstract

The invention discloses a low-frequency antenna, and belongs to the field of antennas. The low-frequency antenna comprises a supporting frame and n charge polar plate arrays, wherein the supporting frame comprises a center shaft, a first supporting frame and a second supporting frame, both the first supporting frame and the second supporting frame are arranged on the center shaft, the Ath charge polar plate array in the n charge polar plate arrays is arranged on one of the first supporting frame and the second supporting plate in a radial outward direction by taking the center shaft as a center, the Bth charge polar plate array is arranged on the other of the first supporting frame and the second supporting frame, a power mechanism drives the first supporting frame and the second supporting frame to rotate around the center shaft through charging all charge polar plates, positive and negative charges rotate around the center shaft in the rotating process of the first supporting frame and the second supporting frame, and thus electromagnetic waves are radiated. It is unnecessary to establish an oscillating electric field in the antenna, so that there is no influence of the resistance, thereby being conducive to reducing the size of the antenna.

Description

technical field [0001] The invention relates to the field of antennas, in particular to a low-frequency antenna. Background technique [0002] Low-frequency (frequency range 300Hz-30kHz) radio waves can penetrate deep seawater and rock formations, can propagate stably in the Earth-ionosphere waveguide, and have low loss, and are used in long-distance communication, underwater communication, and ground-penetrating communication. Occasions are irreplaceable. [0003] Existing antennas usually emit electromagnetic waves in the form of current oscillation, so the antenna needs to be connected to a feeder, and an excitation voltage is provided through the feeder to form current oscillation in the antenna. The matching between the antenna and the feeder needs to be considered when setting the antenna and the feeder. In order to facilitate the matching between the antenna and the feeder, it is usually necessary to set the reactance of the antenna as small as possible. However, th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/36H01Q1/12
CPCH01Q1/12H01Q1/36
Inventor 赵锦波郑欢刘庆邓方顺向冰罗成杨淼王衡程磊赵小波宋超邓珊
Owner 武汉船舶通信研究所
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