A Compact Broadband Antenna with Dual-Resonance for Implantable Devices

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 frequencie...

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Bibliographic Details
Published in:Micromachines (Basel) 2019-01, Vol.10 (1), p.59
Main Authors: Li, Rongqiang, Li, Bo, Du, Guohong, Sun, Xiaofeng, Sun, Haoran
Format: Article
Language:English
Subjects:
Antennas
Bandwidths
Biotelemetry
Broadband
Design
Human body
implantable antenna
Medical Device Radiocommunications Service (MedRadio) band
Medical equipment
patch antenna
Patch antennas
Resonance
Resonant frequencies
Simulation
Skin
specific absorption rate (SAR)
Substrates
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Summary: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.
ISSN:2072-666X
2072-666X
DOI:10.3390/mi10010059