Em Energy Absorption in the Human Body Tissues Due to Uwb Antennas

Klemm, M.; Troester, Gerhard

doi:10.2528/pier06040601

Cited by 110 publications

(68 citation statements)

References 21 publications

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“…In [7,12,[16][17][18][19], the effect of different antennas or polarizations on the UWB links are investigated. References [20,21] contain examination of body shapes and postures on the UWB on-body communications and in [22] the energy absorption of the UWB signal by the human body is found out.…”

Section: Introductionmentioning

confidence: 99%

Categorized Uwb on-Body Radio Channel Modeling for Wbans

Kumpuniemi¹,

Hämäläinen²,

Yazdandoost³

et al. 2016

PIER B

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Abstract-A categorized radio channel modeling for wireless ultra-wideband on-body body area networks is discussed. Measurements in an anechoic chamber at fourteen antenna locations are conducted in a 2-8 GHz band. The dipole and double loop antenna types are used. Six link classes are formed based on the antenna spots on the torso, head or limb. The limb-limb and the head-limb links have the lowest and highest path losses, respectively. The head-limb links have the shortest channel impulse responses (CIRs) and limb-limb links the longest ones. The CIR amplitudes follow the inverse Gaussian distribution. The tap indexes and the total excess delays are modeled with the negative binomial distribution. In most cases, the CIRs decay faster for the dipole. Otherwise no major differences exist between the antennas.

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Section: Introductionmentioning

confidence: 99%

Categorized Uwb on-Body Radio Channel Modeling for Wbans

Kumpuniemi¹,

Hämäläinen²,

Yazdandoost³

et al. 2016

PIER B

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“…The UWB monopole antenna has a low number of design parameters, higher efficiency and easier fabrication than resistive antennas for tomography proposed in the literature [9]. Moreover, in [17], the UWB disc monopole has demonstrated good return loss and electromagnetic absorption in human body. Consequently, in this experiment a UWB disc monopole has been designed using the method of moments implemented in the Agilent Momentum.…”

Section: Introductionmentioning

confidence: 99%

Simulated and Experimental Investigation of Microwave Imaging Using Uwb

Lázaro¹,

Girbau²,

Villarino³

2009

PIER

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Abstract-Microwave breast tumour detection is a non-invasive technique that uses non ionizing radiation. Microwave imaging has the potential to achieve early detection of breast cancer due to the high specificity and the large difference in electrical properties of the malignant tissue when compared to normal breast tissue. This paper studies the feasibility of using UWB signals for breast imaging. Simulated results using Finite-Difference Time-Domain (FDTD) Method will be presented. A sensibility study of the variations in the breast relative dielectric permittivity and of the variations of the skin-surface contour is also provided. A working prototype for microwave imaging is developed using a conventional Vector Network Analyzer (VNA) with the time processing capability.

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“…Many papers have been published on models of antenna structures for implants in the UWB band, but these papers have focused on antenna matching not investigations of channel loss [4][5][6]. Likewise similar models have been created for lower frequency ISM bands [7].…”

Section: Introductionmentioning

confidence: 99%

Computationally Efficient Model for Uwb Signal Attenuation Due to Propagation in Tissue for Biomedical Implants

Theilmann¹,

Tassoudji²,

Teague³

et al. 2012

PIER B

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Abstract-An analytical model which predicts the attenuation of ultrawide-band (UWB) signals as they traverse various inhomogeneous tissues is presented. The model provides a computationally efficient method of determining the frequency-dependent losses encountered by electromagnetic radio frequency (RF) signals used to communicate with biomedical implants.Classic transmission line theory is employed to generate an analytical representation which models the inhomogeneous tissue using layers of homogeneous material. The proposed model was verified experimentally with tests of both single and multilayer samples. A realistic abdominal implant scenario was also modeled and the predictions were verified using a commercially available 3D electromagnetic (EM) simulator. The results of this study indicate that for deep implants the higher frequency portion of the UWB spectrum is attenuated much more strongly than the lower end of the band. This implies that for robust communication UWB signals targeting biomedical implants should be limited to the lower portion of the spectrum.

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Em Energy Absorption in the Human Body Tissues Due to Uwb Antennas

Cited by 110 publications

References 21 publications

Categorized Uwb on-Body Radio Channel Modeling for Wbans

Categorized Uwb on-Body Radio Channel Modeling for Wbans

Simulated and Experimental Investigation of Microwave Imaging Using Uwb

Computationally Efficient Model for Uwb Signal Attenuation Due to Propagation in Tissue for Biomedical Implants

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