A Dual-Mode Multi-Polarization Millimeter Wave Wearable Antenna for WBAN Applications

2019 IEEE MTT-S International Microwave Biomedical Conference (IMBioC) Pub Date : 2019-05-01 DOI:10.1109/IMBIOC.2019.8777910

Xuanfeng Tong, Changrong Liu, Yan Chen, Jingbo Zhu, Xinmi Yang, Huiping Guo, Xueguan Liu

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引用次数: 4

Abstract

A dual-mode multi-polarization millimeter wave wearable antenna working at 28GHz for wireless body area network (WBAN) applications is presented. Series feed antenna array is proposed to achieve high gain. Feeding network is elaborately designed in order to satisfy the radiation pattern and polarization requirements of on-body mode and off-body mode in WBAN. Series feed antenna array and feeding network are then integrated together to form the dual-mode multi-polarization wearable antenna. The wearable antenna can operate at on-body mode and off-body mode by exciting different ports. When the wearable antenna operates at on-body mode, it has omnidirectional radiation pattern with vertical polarization (VP). Additionally, broadside radiation pattern with left hand circularly polarization (LHCP) and right hand circularly polarization (RHCP) can be generated when it works at off-body mode. Simulated bandwidth is 2.68GHz with reflection coefficients lower than −10dB. Additionally, bandwidth of axial ratio lower than 3dB exceeds 4GHz. Maximum simulation gain of on-body mode and off-body mode is 2.1dBi and 5.3dBic, respectively.

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一种用于WBAN应用的双模多极化毫米波可穿戴天线

提出了一种工作频率为28GHz的双模多极化毫米波可穿戴天线，用于无线体域网络(WBAN)。为了实现高增益，提出了串联馈电天线阵列。为了满足无线宽带网络中有体模式和离体模式的辐射方向图和极化要求，对馈电网络进行了精心设计。串联馈电天线阵和馈电网络集成在一起，形成双模多极化可穿戴天线。该可穿戴天线通过激励不同的端口，可以在身体上和身体外工作。当可穿戴天线工作在人体模式时，具有垂直极化的全向辐射方向图。此外，在离体模式下可产生左手圆偏振(LHCP)和右手圆偏振(RHCP)的宽侧辐射方向图。仿真带宽为2.68GHz，反射系数小于−10dB。轴比低于3dB的带宽超过4GHz。上身模式和离体模式的最大仿真增益分别为2.1dBi和5.3 dbi。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2019 IEEE MTT-S International Microwave Biomedical Conference (IMBioC)

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