Design of a novel miniature implantable rectenna for in-body medical devices power support

Bakogianni, Sofia; Koulouridis, Stavros

doi:10.1109/eucap.2016.7481970

Cited by 14 publications

(18 citation statements)

References 19 publications

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“…Absorbing excess electromagnetic power could harm body tissue, hence the need to consider the quantity that is tolerable by the body model [4]. The value obtained satisfies the US maximum 1.6 W/Kg regulated SAR value [17]. Nonetheless, in practice it is not enough to determine the total level of harmfulness of antenna's electromagnetic power to a body by SAR without involving other parameters like the duration of time at which the tissue is exposed to the EM fields etc.…”

Section: Simulation Resultsmentioning

confidence: 99%

Unidirectional Uwb Magneto-Electric Antenna for Medical Telemetry

Anosike¹,

Feng²,

Zheng³

et al. 2018

PIER M

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An implantable magneto-electric antenna (IMEA) aiming for operation at ultra-wideband (UWB: 3.1-10.6 GHz) frequency spectrum is presented for biotelemetry usages for the first time. The IMEA is composed of a horizontal planar bowtie radiator, from which its middle part excites the antenna, and a vertically inclined rectangular radiator. The two radiators are complementary and correspond to electric and magnetic dipoles, respectively. The radiators are built over a square dielectric material (ε r = 6, σ = 0.0005) with a cavity for embedding suitable accompanying circuitry system. The IMEA with its biocompatible insulator (PEEK: ε r = 3.2, tan δ = 0.01) measures 1456 mm 3 in volume. HFSS software was used to carry out numerical optimization of the IMEA with a simple multilayered model of body tissue (Skin, Fat and Muscle) as the host environment. The simulated result of the proposed IMEA shows over 90% impedance bandwidth (S 11 < −10 dB) and records a remarkable high gain of 2 dBi within 70% bandwidth. The radiation efficiency is around 50%, and a unidirectional radiation pattern with little back lobe is observed.

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Section: Simulation Resultsmentioning

confidence: 99%

Unidirectional Uwb Magneto-Electric Antenna for Medical Telemetry

Anosike¹,

Feng²,

Zheng³

et al. 2018

PIER M

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“…It is also necessary to analyze the power redelivered to the external dipole to ensure the possibility to receive signal from the circular antenna when it is embedded inside human body. In [19], a RF-DC conversion circuit is proposed with an efficiency of 33.1%. If 5% of total converted DC power is assumed to be used for emitting signal, for each distance between the energy delivery dipole and the skin surface, there is always a corresponding maximum distance between the reception dipole and the skin surface in order to ensure the connection (energy received by the reception dipole ≥ -90dBm [20] which is the minimum power that can be received by mobile phones without information loss) for every different implantation depth.…”

Section: B As An Emission Device To Reception Dipolementioning

confidence: 99%

Design and characterization of a dual-band miniaturized circular antenna for deep in body biomedical wireless applications

Ding

Koulouridis

Pichon

2020

Int. J. Microw. Wireless Technol.

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In this paper, a novel miniaturized implantable circular antenna is presented. It supports both wireless information communication and wireless energy transmission at the Medical Device Radiocommunication band (MedRadio 402–405 MHz) and the industrial, scientific, and medical bands (ISM 902.8–928 MHz). The antenna is circular to avoid sharp edges while miniaturization is achieved by adding two circular slots to the patch. The main scenario includes embedding into the muscle layer of a cylindrical three-layer model of a human arm for which several parameters are analyzed (resonance, radiation pattern, and specific absorption rate). Power transmission efficiency and interaction distance limits to ensure connections are also evaluated. Finally, the design is validated by an experimental measurement in an anechoic chamber, and some new improvements are proposed.

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“…This technique is called as PIFA. These structures have several advantages like a simple structure, small size, multiband frequency operations etc [9][10][11][12][13][14]. A simple square shape patch was selected due to its compactness and ease of fabrication.…”

Section: Proposed Antenna Designmentioning

confidence: 99%

Design of Implantable MSA for Glucose Monitoring

Khadase¹,

Nandgaonkar²

2017

Proceedings of the International Conference on Communication and Signal Processing 2016 (ICCASP 2016)

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Abstract. The emerging techniques in the sensor field include an antenna as a bio-sensor. A simple Planar Inverted F antenna (PIFA) as an implantable glucose sensor to detect variation in glucose level is presented in this paper. The work includes design of PIF antenna using HFSS software and in vitro testing as a sensor with various glucose level in synthetic blood. The antenna is designed to resonate at frequency 530 MHz for demonstration purpose. The shift in the resonant frequency of 3.54 kHz per 1 mg/dl is observed with respect to change in glucose level concentration.

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Design of a novel miniature implantable rectenna for in-body medical devices power support

Cited by 14 publications

References 19 publications

Unidirectional Uwb Magneto-Electric Antenna for Medical Telemetry

Unidirectional Uwb Magneto-Electric Antenna for Medical Telemetry

Design and characterization of a dual-band miniaturized circular antenna for deep in body biomedical wireless applications

Design of Implantable MSA for Glucose Monitoring

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