Publications de Abdolhamid Shoory

Application of the Cascaded Transmission Line Theory of Paul and McKnight to the Evaluation of NEXT and FEXT in Twisted Wire Pair Bundles

Farhad Rachidi-Haeri, Marcos Rubinstein, Abraham Rubinstein, Abdolhamid Shoory, Carlos Alberto Romero Romero, Nicolas Mora Parra

The cascaded transmission line theory of Paul and McKnight is used in this paper to predict near-end crosstalk (NEXT) and far-end crosstalk (FEXT) in a bundle of twisted wire pairs. The approach is validated using the CST Cable Studio commercial software a ...

Ieee-Inst Electrical Electronics Engineers Inc2013

Lightning Return Strokes to Tall Towers: Ability of Engineering and Electromagnetic Models to Reproduce Nearby Electromagnetic Fields

Farhad Rachidi-Haeri, Marcos Rubinstein, Davide Pavanello, Seyed Abbas Mosaddeghi, Abdolhamid Shoory

We present measurements of nearby vertical and horizontal electric fields from leaders and return strokes associated with lightning strikes to the 100-m-tall Gaisberg Tower in Austria obtained in 2007 and 2008. The fields were measured at a distance of abo ...

Ieee-Inst Electrical Electronics Engineers Inc2012

Correction to "Relativistic Doppler effect in an extending transmission line: Application to lightning"

Farhad Rachidi-Haeri, Marcos Rubinstein, Abdolhamid Shoory

American Geophysical Union2012

Time-Domain Generalized Telegrapher's Equations for the Electromagnetic Field Coupling to Finite Length Wires Above a Lossy Ground

Farhad Rachidi-Haeri, Abdolhamid Shoory

In this paper, a time-domain variant of the generalized telegrapher's equations for transient electromagnetic field coupling to a finite-length wire above a lossy half-space is derived. The approach is fully based on the thin-wire antenna theory. The lossy ...

2012

On the Mechanism of Current Pulse Propagation Along Conical Structures: Application to Tall Towers Struck by Lightning

Farhad Rachidi-Haeri, Marcos Rubinstein, Keyhan Sheshyekani, Abdolhamid Shoory

We discuss in this paper the propagation of lightning current pulses along conical tall structures. Although the dominant mode of an infinitely long conical transmission line is transverse electric and magnetic (TEM), such a structure can also support high ...

2012

Relativistic Doppler effect in an extending transmission line: Application to lightning

Farhad Rachidi-Haeri, Marcos Rubinstein, Abdolhamid Shoory

We present in this paper a thorough analysis of current wave propagation with arbitrary speed along an extending transmission line. We derive rigorous analytical equations in the time and frequency domains expressing the reflections of the current wave occ ...

2011

Lightning Return Strokes to Tall Towers: Ability of Engineering Models to Reproduce Nearby Electromagnetic Fields

Farhad Rachidi-Haeri, Marcos Rubinstein, Davide Pavanello, Seyed Abbas Mosaddeghi, Abdolhamid Shoory

2011

Simulated NEXT and FEXT in Twisted Wire Pair Bundles

Farhad Rachidi-Haeri, Marcos Rubinstein, Abraham Rubinstein, Abdolhamid Shoory

2011

On the accuracy of approximate techniques for the evaluation of lightning electromagnetic fields along a mixed propagation path

Farhad Rachidi-Haeri, Marcos Rubinstein, Abdenabi Mimouni, Abdolhamid Shoory

In this paper we review simplified analytical expressions derived by Wait using the concept of attenuation function for the analysis of the propagation of lightning-radiated electromagnetic fields over a mixed propagation path (vertically stratified ground ...

2011

A Physical Derivation of the Horizontal Electric Field Under the Ground Associated with Lightning Return Strokes

Farhad Rachidi-Haeri, Marcos Rubinstein, Abdolhamid Shoory

2011

On the Measurement and Calculation of Horizontal Electric Fields From Lightning

Farhad Rachidi-Haeri, Marcos Rubinstein, Abdolhamid Shoory

In this paper, we discuss two issues related to the measurement and calculation of the horizontal electric fields from lightning. On the one hand, there is an inherent difficulty inmeasuring the horizontal electric field component from lightning because of ...

2011

Lightning electromagnetic radiation over a stratified conducting ground: Formulation and numerical evaluation of the electromagnetic fields

Farhad Rachidi-Haeri, Abdolhamid Shoory

The formulation describing the electromagnetic field radiated by a lightning return stroke over a two-layered conducting ground is presented in this paper. The derivation of the Green's functions required to solve the problem is first discussed in detail, ...

American Geophysical Union2011

Lightning Horizontal Electric Fields above a Two-Layer Ground

Farhad Rachidi-Haeri, Marcos Rubinstein, Abdenabi Mimouni, Abdolhamid Shoory

2010

Direct use of discrete complex image method for evaluating electric field expressions in a lossy half space

Abdolhamid Shoory

A modelling technique is proposed for direct use of the discrete complex image method (DCIM) to derive closed-form expressions for electric field components encountered in the electric field integral equation (EFIE) representing a lossy half space problem. ...

2010

Validity of Simplified Approaches for the Evaluation of Lightning Electromagnetic Fields above a Horizontally Stratified Ground

Farhad Rachidi-Haeri, Abdenabi Mimouni, Abdolhamid Shoory

We review in this paper simplified analytical expressions derived by Wait using the concept of attenuation function for the analysis of the propagation of lightning radiated electromagnetic fields over a horizontally stratified ground. Considerations regar ...

Institute of Electrical and Electronics Engineers2010

The Effect of a Horizontally Stratified Ground on Lightning Electromagnetic Fields

Farhad Rachidi-Haeri, Abdolhamid Shoory

2010

Lightning Electromagnetic Fields at Very Close Distances Associated with Lightning Strikes to the Gaisberg Tower

Farhad Rachidi-Haeri, Marcos Rubinstein, Pierre Zweiacker, Davide Pavanello, Seyed Abbas Mosaddeghi, Abdolhamid Shoory

In this paper we present and discuss measurements of electric (vertical and radial) and magnetic fields from leaders and return strokes associated with lightning strikes to the 100 m tall Gaisberg tower in Austria obtained in 2007 and 2008. The fields were ...

American Geophysical Union2010

Close-Range Electric Fields Associated with Lightning Strikes to the Austrian Gaisberg Tower

Farhad Rachidi-Haeri, Marcos Rubinstein, Davide Pavanello, Seyed Abbas Mosaddeghi, Abdolhamid Shoory

2010

Vertical and radial electric fields from leaders and return strokes associated with lightning strikes to the Gaisberg tower

Farhad Rachidi-Haeri, Marcos Rubinstein, Pierre Zweiacker, Davide Pavanello, Seyed Abbas Mosaddeghi, Abdolhamid Shoory

2010

On the Propagation of Current Pulses along Tall Structures Struck by Lightning

Farhad Rachidi-Haeri, Marcos Rubinstein, Abdolhamid Shoory

2010