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Breath analysis as well as the detection of abnormal respiratory rate can provide important feedback on people's health status. In this contribution we propose a wearable radiofrequency identification (RFID) epidermal device consisting of a flexible open loop antenna, that enables an easy adhesion on the user's skin, coupled with a graphene oxide-based sensor sensitive to the water vapour. The graphene...
One of the main challenges for wireless body area networks (WBANs) is to evaluate realistic methods to generate channel models for new different purposes and various environments quickly and flexibly. Finite integration technique (FIT) has shown to be promising method for modeling channels characteristics in WBAN deployment scenarios. Applying simulation based channel modeling on the performance evaluations...
Wireless Body Area Network (WBAN) is one of developed technology that supports telemedical services. WBAN provides low power consumption, mobile, and easier monitoring. This application needs a wearable device especially a textile antenna for implementation. So far, the antenna's performance is mainly affected by a human body when it is applied near to the human body. In this paper, we propose a novel...
This paper presents the pressure readout results from a piezoresistive pressure sensor in a biological environment mimicking the human head properties for intracranial pressure (ICP) monitoring application. The piezoresistive pressure sensor is powered wirelessly through inductively coupled antennas. After successful activation of the sensor, the pressure readout is demonstrated from 0 mmHg to 30...
This paper presents a novel physical parameters measuring method using wireless passive microwave resonator for harsh environment. Even if ordinarily physical parameters sensors are very attractive for a lot of applications, they suffer from weak energy autonomy and they are not compatible with harsh environment. The sensors must work reliably in the high temperature or high pressure environment,...
Wireless Sensor Networks have been recently proposed for applications in a large variety of systems. Among all, the possibility to insert a terminal node inside a dissipative liquid medium has attracted attention by few authors. For this reason, the paper presents the design and construction of a test bench for the experimental characterization of antennas inside liquids. The design has involved the...
This paper shows an antenna solution for use on electrophysiological monitoring devices with three different purposes. It may be used for wireless communications, wireless charging, and as an electrode or on top of it.
In this paper, temporal fading characteristics at 900 MHz and 2400 MHz for a traffic monitoring system are presented. Due to the low receiving antenna heights, deep fades caused by heavy truck traffic can be observed. By determination of the level crossing rate, it was found that the impact of traffic on temporal fading diminishes when the receiving antenna is placed higher. Ricean K-factors were...
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