An Implantable Antenna Design for an Intelligent Health Monitoring System Considering the Relative Permittivity and Conductivity of the Human Body

Yang, Li; Yang, Lijun; Duan, Wenqing; Zhao, Xiaonan

doi:10.1109/access.2019.2899242

Cited by 9 publications

(4 citation statements)

References 18 publications

(20 reference statements)

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“…In Fig. 2, the data of human muscle and porcine liver are based on the [6,7]. Aluminum powder increase between 1% (εr = 141) and 8% (εr = 817) roughly translates to a 1% increase of aluminum powder and equals relative permittivity increase of εr to around 100.…”

Section: Measurement Methodsmentioning

confidence: 99%

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Development of 500kHz muscle equivalent solid phantom

Rakhmadi

Saito

2020

IEICE ComEX

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Tissue-mimicking phantom is a biological tissue replacement which has been used as a replacement to understand the relationship between the electromagnetic and the human body. However, many of the developed phantoms are produced for several MHz to several GHz region, and less in the kHz region. This research introduces a new phantom to understand the electromagnetic effect at kHz region. The phantom is a 500 kHz phantom which mimics human muscle dielectric properties. The dielectric properties of the phantom are adjusted by aluminum powder content, which is 40% of the total phantoms content. In this research, we use different phantom dielectric properties measurement method compared to the one at higher frequencies. Furthermore, the phantom thermal properties and density are measured to be used in numerical calculations.

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Section: Measurement Methodsmentioning

confidence: 99%

“…The relative permittivity at lower frequencies is much higher than the one at higher frequencies such as microwave. The phantom is adjusted until the relative permittivity is within a 10% margin of error compared to references [6,7].…”

Section: Materials and Phantom Producing Techniquementioning

confidence: 99%

Development of 500kHz muscle equivalent solid phantom

Rakhmadi

Saito

2020

IEICE ComEX

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“…Longer-term monitoring is recommended for patients experiencing occasional and unrecognized fainting periods. Therefore, implantable technologies are particularly attractive and have the potential to provide significant solutions [134]. A fully implanted cardiac pacemaker for patients suffering from cardiac anomalies was conceived in the 1960s, which was among the first implantable monitoring cardiac devices [135].…”

Section: B Implantable Wireless Body Area Networkmentioning

confidence: 99%

A Review on the State of the Art in Atrial Fibrillation Detection Enabled by Machine Learning

Rizwan

Zoha

Mabrouk

et al. 2021

IEEE Rev. Biomed. Eng.

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Atrial Fibrillation (AF) the most commonly occurring type of cardiac arrhythmia is one of the main causes of morbidity and mortality worldwide. The timely diagnosis of AF is an equally important and challenging task because of its asymptomatic and episodic nature. n this paper, state-ofthe-art ECG data-based machine learning models and signal processing techniques applied for auto diagnosis of AF are reviewed. Moreover, key biomarkers of AF on ECG and the common methods and equipment used for the collection of ECG data are discussed. Besides that, the modern wearable and implantable ECG sensing technologies used for gathering AF data are presented briefly. In the end, key challenges associated with the development of auto diagnosis solutions of AF are also highlighted. It is the first review paper of its kind that comprehensively presents a discussion on all these aspects related to AF auto-diagnosis at one place. It is observed that there is dire need of low energy, low cost but accurate auto diagnosis solutions for the proactive management of AF.

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“…Recently, the advancement of technologies for healthcare service has risen sharply [1][2][3][4][5]. The outcomes of relevant medical researches exceed laboratory attempts and are already upgraded to clinical trials [6,7].…”

Section: Introductionmentioning

confidence: 99%

Receiving Uwb Antenna for Wireless Capsule Endoscopy Communications

Kissi¹,

Särestöniemi²,

Kumpuniemi³

et al. 2020

PIER C

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Wireless capsule endoscopy systems utilize a combination of hardware and software devices to ensure the healthcare of a human being. In praise of involved antennas in the overall medical system design, UWB (Ultra-Wideband) range occupies the highest ranks in the literature. The low-band of UWB is regarded as the best frequency range, within the approved standards, to realize the better transmission of captured medical images by the capsule inside the SI tract, in terms of high resolution and low-path loss. A variety of passive capsules have been designed and made available in the literature, while the accurate design of the corresponding on-body antenna is lagging. For this purpose, this paper provides an extended study of a recently published on-body antenna operating at 3.75-4.25 GHz band. The measured antenna realizes good directivity of 5.78 dBi and 9.50 dBi towards the body without and with the cavity, respectively. The direction of the proposed on-body antenna beam is targeted to be mounted on the body surface. On-body simulations were run with CST Microwave Studio by involving an abdominal multi-layer model, and followed by navel and back areas of the voxel model to predict the antenna behavior close to different lossy body environments. Later, the antenna structure was measured next to a real human abdomen. Simulation results reveal that the proposed antenna with or without the cavity enables enhanced in-body communication when mounted on the abdomen with less path loss. This is supported by the low power totaling 20 dB at the SI (Small Intestine) tract. Furthermore, on-body measurements confirm the good antenna performance. Consequently, the planar compact antenna is regarded as a good on-body candidate for wireless capsule endoscopy systems.

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An Implantable Antenna Design for an Intelligent Health Monitoring System Considering the Relative Permittivity and Conductivity of the Human Body

Cited by 9 publications

References 18 publications

Development of 500kHz muscle equivalent solid phantom

Development of 500kHz muscle equivalent solid phantom

A Review on the State of the Art in Atrial Fibrillation Detection Enabled by Machine Learning

Receiving Uwb Antenna for Wireless Capsule Endoscopy Communications

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