Dual-band dual-mode wireless body area network antenna

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...

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 the antenna proposed by the present invention can simultaneously meet the required conditions of the dual-purpose antenna through a simple coaxial or microstrip antenna

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