A Compact Broadband Antenna with Dual-Resonance for Implantable Devices

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

doi:10.3390/mi10010059

Micromachines (Jan 2019)

A Compact Broadband Antenna with Dual-Resonance for Implantable Devices

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

Affiliations

Rongqiang Li: College of Electronic Engineering, Chengdu University of Information Technology, Chengdu 610225, China
Bo Li: College of Electronic Engineering, Chengdu University of Information Technology, Chengdu 610225, China
Guohong Du: College of Electronic Engineering, Chengdu University of Information Technology, Chengdu 610225, China
Xiaofeng Sun: College of Electronic Engineering, Chengdu University of Information Technology, Chengdu 610225, China
Haoran Sun: College of Electronic Engineering, Chengdu University of Information Technology, Chengdu 610225, China

DOI: https://doi.org/10.3390/mi10010059
Journal volume & issue: Vol. 10, no. 1
p. 59

Abstract

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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.

Published in Micromachines

ISSN: 2072-666X (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Mechanical engineering and machinery
Website: https://www.mdpi.com/journal/micromachines

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