Dual-band dual-mode wireless body area network antenna

A wireless body area network, dual-mode technology, applied in the direction of antenna grounding switch structure connection, radiation element structure, etc., can solve the problems of complex feeding system and achieve the effect of low electromagnetic radiation absorption rate

Pending Publication Date: 2019-06-18
NANJING UNIV OF INFORMATION SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention solves the relatively complex problem of the existing dual-purpose antenna feeding system for on-body communication and external communication, and

Method used

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  • Dual-band dual-mode wireless body area network antenna
  • Dual-band dual-mode wireless body area network antenna
  • Dual-band dual-mode wireless body area network antenna

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Embodiment Construction

[0023] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0024] The dual-band dual-mode WBAN antenna described in this embodiment realizes omnidirectional radiation and directional radiation respectively through a monopole mode operating at 2.45 GHz and a cavity resonance mode operating at 5.8 GHz.

[0025] figure 1 It is the structure diagram of the antenna of the present invention. The structure utilizes two different modes of the antenna to realize omnidirectional and directional radiation characteristics respectively, and at the same time, it can ensure that the antenna is not affected by human tissue, and keep the electromagnetic radiation absorption rate far lower than the international standard value.

[0026] The antenna is composed of two FR4 dielectric boards, namely the upper dielectric board 1 and the lower dielectric board 2. The middle of the upper surface of the upper...

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Abstract

The invention discloses a dual-band dual-mode wireless body area network antenna, i.e., a planar microstrip antenna with dual purposes of on-body communication and out-of-body communication. Omnidirectional radiation and directional radiation are independently realized by working under a monopole mode and a cavity resonant mode. The structure of the antenna comprises an upper layer dielectric slaband a lower layer dielectric slab, wherein the upper surface of the upper layer dielectric slab is coated with metal to serve as the main radiator of the antenna, and the lower surface is not coatedwith the metal; the upper surface of the lower layer dielectric slab is coated with a metal layer to serve as the metal ground of the antenna, and the metal ground is provided with a round hole for afeeding metal column to pass; the lower surface of the lower layer dielectric slab is also coated with one section of rectangular metal structure; and two layers of dielectric slabs are connected through three metal columns, wherein the middle metal column is the feeding metal column for connecting the radiator with the tail end of the microstrip antenna, and the other two metal columns are independently connected with the radiator and the metal ground. By use of the antenna, the problem that an existing antenna feeding system with dual purposes of on-body communication and out-of-body communication is complex can be solved.

Description

technical field [0001] The invention belongs to the technical field of communication and wireless transmission, and in particular relates to a dual-band dual-mode wireless body area network antenna. Background technique [0002] Wireless Body Area Network (WBAN) is a communication network system attached to the human body. It realizes data transmission and exchange through sensors on different parts of the body. It is composed of wearable, implantable and intrusive devices. . The communication between various devices or sensors in the wireless body area network can be called body communication, which is an emerging short-distance wireless communication method. Emerging communication means of contact-sensing devices. According to different transmission methods, body communication can be divided into body communication and body communication. On-body communication refers to the communication in which electromagnetic signals are transmitted using the human body as the transm...

Claims

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Application Information

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IPC IPC(8): H01Q1/36H01Q1/38H01Q1/50
Inventor 赵晨
Owner NANJING UNIV OF INFORMATION SCI & TECH
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