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Micromachines 2019, 10(1), 59; https://doi.org/10.3390/mi10010059

A Compact Broadband Antenna with Dual-Resonance for Implantable Devices

College of Electronic Engineering, Chengdu University of Information Technology, Chengdu 610225, China
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Received: 12 November 2018 / Revised: 13 January 2019 / Accepted: 14 January 2019 / Published: 16 January 2019
(This article belongs to the Special Issue Implantable Microdevices)
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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. View Full-Text
Keywords: implantable antenna; patch antenna; biotelemetry; specific absorption rate (SAR); Medical Device Radiocommunications Service (MedRadio) band implantable antenna; patch antenna; biotelemetry; specific absorption rate (SAR); Medical Device Radiocommunications Service (MedRadio) band
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Li, R.; Li, B.; Du, G.; Sun, X.; Sun, H. A Compact Broadband Antenna with Dual-Resonance for Implantable Devices. Micromachines 2019, 10, 59.

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