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Wearable VHF-band fractal oscillator antenna for marine search and rescue

A vibrator antenna and fractal technology, applied to antennas, antennas, antenna parts and other directions suitable for movable objects, can solve problems such as the design method of wearable antennas that have not been seen, and achieve light weight, overcome volume and weight The effect of large and large application space

Pending Publication Date: 2017-08-18
ZHENJIANG ZHONGAN COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] So far, there has been no report on the design method of applying wearable antennas to single-person search and rescue devices at sea

Method used

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  • Wearable VHF-band fractal oscillator antenna for marine search and rescue
  • Wearable VHF-band fractal oscillator antenna for marine search and rescue
  • Wearable VHF-band fractal oscillator antenna for marine search and rescue

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Experimental program
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Effect test

Embodiment 1

[0031] Such as figure 1 As shown, the V-shaped structure and the equivalent ground plane of the antenna in this embodiment are made of copper foil, and the material of the copper foil is H62 brass with a thickness of 0.02 mm. The feed point is located between the V-shaped structure and the equivalent ground plane, and an external connection such as a coaxial cable can be used for feeding. At this time, the inner core of the coaxial cable is connected to the intersection of the V-shaped branches at the bottom of the V-shaped structure, and the coaxial cable The outer conductor is connected to the middle of the top of the equivalent ground plane. The vertical height of the V-shaped structure of the antenna is 483mm, and the horizontal width is 386.4mm; all V-shaped angles (acute angles) in the V-shaped structure are 43.6°, and the horizontal width of the branches is 10mm. The vertical height of the antenna equivalent ground plane is 100mm, and the horizontal width is 386.4mm. ...

Embodiment 2

[0035] Such as Figure 5 As shown, the V-shaped structure and the equivalent ground plane of the antenna in this embodiment are made of copper foil, and the material of the copper foil is H62 brass with a thickness of 0.02 mm. The feed point is located between the V-shaped structure and the equivalent ground plane, and an external connection such as a coaxial cable can be used for feeding. At this time, the inner core of the coaxial cable is connected to the middle of the bottom of the V-shaped structure, and the outer conductor of the coaxial cable is connected to to the middle of the top of the equivalent ground plane. The V-shaped structure of the antenna has a vertical height of 320mm and a horizontal width of 224mm; the bottom of the V-shaped structure becomes a rectangular planar structure with a vertical height of 40mm and a horizontal width of 224mm; all V-shaped angles (acute angles) in the V-shaped structure are 43.6° , the horizontal width of the branches is 10mm, ...

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Abstract

The invention discloses a wearable VHF-band fractal oscillator antenna for marine search and rescue, which comprises a flake V-shaped structure, an equivalent grounding surface and a feeding point arranged between the flake V-shaped structure and the equivalent grounding surface, wherein the flake V-shaped structure comprises two first branches with the same length, the two first branches are crossed to form a V shape, and second branches extend from the middle points of the two first branches. The size of the antenna structure is small, the weight is light, and an opening structure is introduced to the antenna, the area of the antenna with the opening structure is nearly 70% smaller than that of an antenna without an opening structure; the wearable antenna is perfectly conformal with a human body, and the use is convenient and comfortable; a marine single person search and rescue system based on the antenna structure of the invention can effectively overcome shortcomings that the traditional maritime search and rescue system is large in size and large in weight; and the application space is large in marine search and rescue, in particular, marine single person search and rescue.

Description

technical field [0001] The invention belongs to the technical field of microwave antennas, in particular to a wearable VHF band fractal oscillator antenna for maritime search and rescue. Background technique [0002] The existing maritime search and rescue systems include search and rescue radar transponder system (SART: Search And Rescue Transponder) and emergency radio position indicating beacon system (EPIRB: Emergency Position Indicating Radio Beacon), which are generally used on lifeboats or life rafts, and have a large volume and weight. It is not conducive to the rescue when a single person falls into the water in seawater. At present, there are few reports on well-developed single-person search and rescue devices at sea. [0003] The antenna is an indispensable device for sending and receiving signals in the maritime search and rescue device. When the operating frequency of the antenna is lower, the signal will propagate farther; however, the size of the antenna wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/27H01Q1/36H01Q1/48H01Q1/50
CPCH01Q1/273H01Q1/36H01Q1/48H01Q1/50
Inventor 朱旗邢红兵
Owner ZHENJIANG ZHONGAN COMM TECH
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