一种用于可植入设备的具有双谐振的紧凑型宽带天线。

A Compact Broadband Antenna with Dual-Resonance for Implantable Devices.

作者信息

Li Rongqiang, Li Bo, Du Guohong, Sun Xiaofeng, Sun Haoran

机构信息

College of Electronic Engineering, Chengdu University of Information Technology, Chengdu 610225, China.

出版信息

Micromachines (Basel). 2019 Jan 16;10(1):59. doi: 10.3390/mi10010059.

DOI:10.3390/mi10010059

PMID:30654556

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6356394/

Abstract

A compact broadband implantable patch antenna is designed for the field of biotelemetry and experimentally demonstrated using the Medical Device Radiocommunications Service (MedRadio) band (401⁻406 MHz). The proposed antenna can obtain a broad impedance bandwidth by exciting dual-resonant frequencies, and has a compact structure using bent metal radiating strips and a short strategy. The total volume of the proposed antenna, including substrate and superstrate, is about 479 mm³ (23 × 16.4 × 1.27 mm³). The measured bandwidth is 52 MHz (382⁻434 MHz) at a return loss of -10 dB. The resonance, radiation and specific absorption rate (SAR) performance of the antenna are examined and characterized.

摘要

设计了一种用于生物遥测领域的紧凑型宽带植入式贴片天线，并使用医疗设备无线电通信服务（MedRadio）频段（401⁻406 MHz）进行了实验验证。所提出的天线通过激发双谐振频率可获得较宽的阻抗带宽，并且采用弯曲金属辐射条和短路策略具有紧凑的结构。所提出天线的总体积（包括基板和覆盖层）约为479 mm³（23×16.4×1.27 mm³）。在回波损耗为-10 dB时，测量带宽为52 MHz（382⁻434 MHz）。对天线的谐振、辐射和比吸收率（SAR）性能进行了研究和表征。