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A Pattern Reconfigurable Antenna for Human Body Communication

A technology for reconfiguring antennas and human body communication, which is applied in the field of human body communication, can solve the problems that the antenna cannot realize the mutual conversion between the body surface and the external communication mode, the antenna volume increases, and is not suitable, and achieves great practical value, small size, and easy access. Processing effect

Active Publication Date: 2021-09-07
NANJING UNIV OF INFORMATION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing wearable devices for body communication and their technical problems are as follows: 1. A reconfigurable beam steering antenna for on-body / out-of-body communication, which uses the reconfigurability of the antenna to change the antenna radiation pattern and improve the required directionality, but it only utilizes oblique beams for on-body communication links
2. A dual-port dual-frequency antenna centered on the human body to realize the body surface / in vitro communication of the antenna, but the antenna cannot realize the mutual conversion between the body surface and in vitro communication modes at the same frequency
3. Use the method of introducing a gap in the antenna to realize human body communication. However, when the gap of the antenna increases, the volume of the antenna will increase, which is not suitable for working near the human body

Method used

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  • A Pattern Reconfigurable Antenna for Human Body Communication
  • A Pattern Reconfigurable Antenna for Human Body Communication
  • A Pattern Reconfigurable Antenna for Human Body Communication

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Embodiment Construction

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0037] Such as Figure 1 ~ Figure 2 As shown, the embodiment of the present invention provides a pattern reconfigurable antenna for human body communication, which includes a PCB substrate 1 , a ground plate 2 and a circular metal patch 3 .

[0038] The PCB substrate 1 is a Rogers-4350b dielectric substrate, and the thickness of the PCB substrate 1 is 60±1mil. The Rogers4350B is a kind of board imported from Rogers in the United States. It is a special board and...

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Abstract

The invention provides a reconfigurable antenna for human body communication, comprising: a PCB substrate; a ground plate attached to the lower surface of the PCB substrate; and a circular metal patch attached to the PCB substrate The upper surface; the circular metal patch includes a circular patch and a central patch, and the circular patch is connected to the central patch through a diode; the circular patch is connected to the ground plate through a short-circuit column; the A feed post is provided on the center patch, the feed post passes through the PCB substrate and the ground plate and is connected to the feed post, and the feed point of the feed post deviates from the center of the center patch. The invention realizes the conversion of the omnidirectional radiation pattern and the directional radiation pattern through the on-off of the diode, thereby realizing the transformation of the body surface communication mode and the external communication mode in the human body communication.

Description

technical field [0001] The invention relates to the technical field of human body communication, in particular to a reconfigurable antenna for human body communication. Background technique [0002] In recent years, wireless communication technology has received more and more attention in the fields of military, medical, human body communication and personal entertainment, and wearable antennas centered on the human body have also become a research hotspot. Body-centered communication is a new type of communication, and the equipment used for communication is placed on the surface of the human body or implanted in the human body. When communicating between devices, the transmission of signals will be affected by human tissue, so the antenna used for communication needs to be specially designed. In the human body communication system, the communication links between all terminal devices arranged on or inside the human body can be divided into three types, including body surf...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/27H01Q1/38H01Q1/48H01Q1/50H01Q3/24H01Q25/04
CPCH01Q1/273H01Q1/38H01Q1/48H01Q1/50H01Q3/247H01Q25/04
Inventor 孙虎成胡艳
Owner NANJING UNIV OF INFORMATION SCI & TECH
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