High-performance wearable AIS antenna

A high-performance antenna technology, applied to antennas, antennas suitable for movable objects, antenna grounding switch structure connection, etc., can solve the problems that affect the search and rescue timeliness of AIS search and rescue equipment, and the antenna performance has a great impact

Pending Publication Date: 2021-04-20
武汉驷腾科技发展有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since AIS works at VHF (Very high frequency, very high frequency), the radius of the quiet zone level of the antenna is about 0.45m. In practical applications, the human body and equipment are within the range of the quiet zone level of the antenna, which has a great impact on the performance of the antenna. Large, directly affects the search and rescue timeliness of AIS search and rescue equipment

Method used

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  • High-performance wearable AIS antenna
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Embodiment Construction

[0022] The present invention will be described in detail below in conjunction with specific embodiments and examples, and the advantages and various effects of the present invention will be presented more clearly. Those skilled in the art should understand that these specific implementations and examples are used to illustrate the present invention, not to limit the present invention.

[0023] Throughout the specification, unless otherwise specified, terms used herein should be understood as commonly used in the art. Therefore, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, this specification shall take precedence.

[0024] Unless otherwise specified, various raw materials, reagents, instruments and equipment used in the present invention can be purchased from the market or prepared by existing methods.

[0025] Such...

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Abstract

The invention discloses a high-performance wearable AIS antenna. The antenna comprises: a flexible circuit board which is used for providing an installation surface; a dipole antenna used for communication; a dipole antenna attached to the installation surface; a bending matching balun line used for improving impedance matching of the dipole antenna, wherein the bending matching balun line is arranged in a manner of surrounding the dipole antenna; and a radio frequency coaxial line used for feed excitation of the dipole antenna. The radio frequency coaxial line is respectively connected with the flexible circuit board, the dipole antenna and the bending matching balun line. According to the invention, the dipole antenna is loaded on the flexible circuit board, and the AIS antenna can be flexibly bent, thereby facilitating the wearing of a human body. By designing the bending matching balun line, impedance matching of the dipole antenna is improved, and the influence of a human body and equipment on the antenna performance is eliminated; and a hollow area is formed at the radiation tail end of the antenna radiation pole, an electric field transmission path is extended, the equivalent physical wavelength of the AIS antenna is increased, and the size of the antenna is effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of AIS communication, and in particular relates to a high-performance wearable AIS antenna. Background technique [0002] As emergency lifesaving alarm equipment for daily work, AIS (Automatic Identification System, ship automatic identification system) positioning lifejackets can be widely used in various workboats, engineering boats, fishing boats, passenger ships and other water operations. With the continuous development and application of AIS technology and GPS / BeiDou technology, higher requirements are put forward for AIS life-saving equipment in order to effectively rescue people who fall into the water in the shortest time. Since AIS works at VHF (Very high frequency, very high frequency), the radius of the quiet zone level of the antenna is about 0.45m. In practical applications, the human body and equipment are within the range of the quiet zone level of the antenna, which has a great impact on the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/27H01Q1/36H01Q1/50H01Q13/08
Inventor 史金山程耘丰董秋剑陈鹏飞
Owner 武汉驷腾科技发展有限公司
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