一种2.4 GHz新型紧凑型柔性低剖面可穿戴天线  

A Novel Compact Flexible Low Profile Wearable Antenna Operating in 2.4 GHz

作　　者：张莹[1] 陈娅莉 宗卫华[1] ZHANG Ying;CHEN Yali;ZONG Weihua(The College of Electronic Information,Qingdao University,Qingdao 266071,China)

机构地区：[1]青岛大学电子信息学院,山东青岛266071

出　　处：《青岛大学学报（工程技术版）》2020年第3期33-36,共4页Journal of Qingdao University(Engineering & Technology Edition)

摘　　要：可穿戴天线是集成在衣物表面或贴附在人体表面的天线,不能影响佩戴者的日常生活,因此为缩小天线尺寸,降低天线剖面,更好的适应人体,本文设计了一款结构简单、易于加工、重量轻、尺寸小、低剖面、低沉本的可用于人体穿戴的低剖面小型化穿戴天线。本文选用相对介电常数为3.5,厚度仅有70μm的聚酰亚胺柔性基板,采用半共面波导(coplanar waveguide,CPW)的馈电方式来设计工作在2.4 GHz工业科学医学频段(industrial scientific medical band,ISM)的可穿戴天线。该天线具有18.15 mm×26.4 mm的紧凑尺寸,天线在人体表面的仿真带宽为1.22~2.6 GHz,较好的满足ISM 2.4 GHz(2.42~2.4848 GHz)医学频段的要求,实现了天线的小型化。本文提出的设计方法为减小穿戴天线尺寸提供了解决方法。The wearable antenna is the antenna that integrated on the surface of clothing or attached to the surface of the human body,which cannot affect the daily life of the wearer.Therefore,in order to reduce the size of the antenna,reduce the profile of the antenna,and better adapt to the human body,a simple structure,easy processing,light weight,small size,low profile,low cost,low profile miniaturized wearable antenna for human body is designed in this paper.A polyimide flexible substrate with a relative dielectric constant of 3.5 and a thickness of only 70μm is selected.It is designed to work in the 2.4 GHz industrial scientific and medical frequency band(ISM)by using the feeding method of half coplanar waveguide(CPW).The antenna has a compact size of 18.15 mm×26.4 mm,which realizes the miniaturization of the antenna.The simulation bandwidth of the antenna on the human body surface is 1.22~2.6 GHz,which satisfies the requirements of the ISM 2.4 GHz(2.42~2.4848 GHz)medical frequency band.The design method proposed in this paper provides a solution for reducing the size of the wearable antenna.

关 键 词：穿戴天线 柔性天线 ISM频段 低剖面 半共面波导 小型化 

分 类 号：TP368.33[自动化与计算机技术—计算机系统结构] TN822.5[自动化与计算机技术—计算机科学与技术]