Li Rongqiang, Li Bo, Du Guohong, Sun Xiaofeng, Sun Haoran
College of Electronic Engineering, Chengdu University of Information Technology, Chengdu 610225, China.
Micromachines (Basel). 2019 Jan 16;10(1):59. doi: 10.3390/mi10010059.
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.
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。
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