The present contribute describes the investigation about the implantable pacemaker (PM) immunity ... more The present contribute describes the investigation about the implantable pacemaker (PM) immunity against high level magnetic interfering fields at 50 Hz that a pacemaker wearer could find in his working environment. To this purpose, a test bench has been set up based on a Helmholtz coil for producing extremely low frequency (ELF) magnetic fields and a heart simulator rightly fed by electric signals that simulate atrium and ventricle signals. A widely diffused PM has been tested, under different operation modes and configurations, for both continuous interfering waves (CW) and variously pulsed interfering waves (PW). Pertaining the obtained results, high levels of CW field, only in unipolar mode, produce a behaviour called 'asynchronous mode' (not dangerous). For PW fields, under particular and rare conditions, the complete inhibition occurred (the most dangerous effect for PM wearer). In order to validate experimental results, a numerical 3-D model has been developed to simu...
IEEE International Symposium on Electromagnetic Compatibility, 2009
The paper investigates the effects of the voltage on the antenna caused by a multipath propagatio... more The paper investigates the effects of the voltage on the antenna caused by a multipath propagation environment. This type of environment was reproduced by a reverberation chamber. Both scattered and direct components were considered for the excitation of the receiving antenna, ranging from line-of-sight to non-line-of-sight conditions. A numerical solution based on a finite difference time domain code was achieved and compared with measurements inside a reverberation chamber. The method allows to balance the amount of random contributions, direct contribution and deterministic multipath contributions just like in actual propagation conditions.
IEEE International Symposium on Electromagnetic Compatibility, 2011
... [6] A. Coates, HG Sasse, DE Coleby, AP Duffy, and A. Orlandi, “Validation of a three-dimensio... more ... [6] A. Coates, HG Sasse, DE Coleby, AP Duffy, and A. Orlandi, “Validation of a three-dimensional transmission line matrix (TLM) model implementation of a mode-stirred reverberation chamber,” IEEE Trans. Electromagn. ... 214–221, Feb. 2002. [9] J. Clegg, AC Marvin, JF Dawson ...
Page 1. Finite difference time domain analysis of multifed non homogeneous loaded cavity Saliha A... more Page 1. Finite difference time domain analysis of multifed non homogeneous loaded cavity Saliha Amara, Franco Moglie ... The figure 5 shows the case of an electric wall on the centre of the cell: the edge field is forced to be equal to the oppositeof the nearest one at any time step. ...
The use of correlation matrices to evaluate the number of uncorrelated stirrer positions of rever... more The use of correlation matrices to evaluate the number of uncorrelated stirrer positions of reverberation chamber has widespread applications in electromagnetic compatibility. We present a comparative study of recent techniques based on multivariate correlation functions aimed at relating space-frequency inhomogeneities/anisotropies to the reduction of uncorrelated positions. Full wave finite-difference time domain simulations of an actual reverberation chamber are performed through an in-house parallel code. The efficiency of this code enables for capturing extensive inhomogeneous/anisotropic spatial volumes (frequency ranges). The concept of threshold crossing is revised under the light of random field sampling, which is important to the performance of arbitrary reverberation chambers.
The present contribute describes the investigation about the implantable pacemaker (PM) immunity ... more The present contribute describes the investigation about the implantable pacemaker (PM) immunity against high level magnetic interfering fields at 50 Hz that a pacemaker wearer could find in his working environment. To this purpose, a test bench has been set up based on a Helmholtz coil for producing extremely low frequency (ELF) magnetic fields and a heart simulator rightly fed by electric signals that simulate atrium and ventricle signals. A widely diffused PM has been tested, under different operation modes and configurations, for both continuous interfering waves (CW) and variously pulsed interfering waves (PW). Pertaining the obtained results, high levels of CW field, only in unipolar mode, produce a behaviour called 'asynchronous mode' (not dangerous). For PW fields, under particular and rare conditions, the complete inhibition occurred (the most dangerous effect for PM wearer). In order to validate experimental results, a numerical 3-D model has been developed to simu...
IEEE International Symposium on Electromagnetic Compatibility, 2009
The paper investigates the effects of the voltage on the antenna caused by a multipath propagatio... more The paper investigates the effects of the voltage on the antenna caused by a multipath propagation environment. This type of environment was reproduced by a reverberation chamber. Both scattered and direct components were considered for the excitation of the receiving antenna, ranging from line-of-sight to non-line-of-sight conditions. A numerical solution based on a finite difference time domain code was achieved and compared with measurements inside a reverberation chamber. The method allows to balance the amount of random contributions, direct contribution and deterministic multipath contributions just like in actual propagation conditions.
IEEE International Symposium on Electromagnetic Compatibility, 2011
... [6] A. Coates, HG Sasse, DE Coleby, AP Duffy, and A. Orlandi, “Validation of a three-dimensio... more ... [6] A. Coates, HG Sasse, DE Coleby, AP Duffy, and A. Orlandi, “Validation of a three-dimensional transmission line matrix (TLM) model implementation of a mode-stirred reverberation chamber,” IEEE Trans. Electromagn. ... 214–221, Feb. 2002. [9] J. Clegg, AC Marvin, JF Dawson ...
Page 1. Finite difference time domain analysis of multifed non homogeneous loaded cavity Saliha A... more Page 1. Finite difference time domain analysis of multifed non homogeneous loaded cavity Saliha Amara, Franco Moglie ... The figure 5 shows the case of an electric wall on the centre of the cell: the edge field is forced to be equal to the oppositeof the nearest one at any time step. ...
The use of correlation matrices to evaluate the number of uncorrelated stirrer positions of rever... more The use of correlation matrices to evaluate the number of uncorrelated stirrer positions of reverberation chamber has widespread applications in electromagnetic compatibility. We present a comparative study of recent techniques based on multivariate correlation functions aimed at relating space-frequency inhomogeneities/anisotropies to the reduction of uncorrelated positions. Full wave finite-difference time domain simulations of an actual reverberation chamber are performed through an in-house parallel code. The efficiency of this code enables for capturing extensive inhomogeneous/anisotropic spatial volumes (frequency ranges). The concept of threshold crossing is revised under the light of random field sampling, which is important to the performance of arbitrary reverberation chambers.
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Papers by Franco Moglie