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Electromagnetic field coupling to a line of finite length: theory and fast iterative solutions in frequency and time domains

Publications associées (70)

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On the evaluation of antenna-mode currents along transmission lines

Marcos Rubinstein, Ana Vukicevic

In this paper, we derive an integral equation describing the antenna-mode currents along a two-wire transmission line (TL). We show that when the cross-sectional dimensions of the line are electrically small, the integral equation reduces to a pair of TL-l ...

2006

Propagation of temporal entanglement

Demetri Psaltis

The equations that govern the temporal evolution of two photons in the Schrödinger picture are derived, taking into account the effects of loss, group-velocity dispersion, temporal phase modulation, linear coupling among different optical modes, and four-w ...

2006

Optimal control in heterogeneous domain decomposition methods

Alfio Quarteroni

Some new domain decomposition methods (DDM) based on optimal control approach are introduced for the coupling of first- and second-order equations on overlapping subdomains. Several cost functionals and control functions are proposed. Uniqueness and existe ...

2005

Optimal control in heterogeneous domain decomposition methods

Alfio Quarteroni

De Gruyter, Walter de Gruyter2005

Measurement of the running of the electromagnetic coupling at large momentum-transfer at LEP

Qian Wang, Aurelio Bay, Horst Vogel, Eduardo Sanchez, Zhirui Xu, Werner Lustermann, Liang Sun, Jian Zhao, Ji Hyun Kim, Zheng Wang, Matthias Weber, Xiao Wang

The evolution of the electromagnetic coupling, α, in the momentum-transfer range 1800 GeV2 < -Q2 < 21600 GeV2 is studied with about 40 000 Bhabha-scattering events collected with the L3 detector at LEP at centre-of-mass energies √s = 189-209 GeV. The runni ...

2005

Explicit infiltration equations and the Lambert W-function

David Andrew Barry

The Green and Ampt infiltration formula, as well as the Talsma and Parlange formula, are two-parameter equations that are both expressible in terms of Lambert W-functions. These representations are used to derive explicit, simple and accurate approximation ...

Elsevier Science B. V.2003

Explicit infiltration equations and the Lambert W-function

David Andrew Barry

The Green and Ampt infiltration formula, as well as the Talsma and Parlange formula, are two-parameter equations that are both expressible in terms of Lambert W- functions. These representations are used to derive explicit, simple and accurate approximatio ...

2002

High-frequency electromagnetic field coupling to long terminated lines

Michel Ianoz

We present a theory for the EMC problem of electromagnetic field coupling to a long line with arbitrary terminations. The theory is applicable for the high-frequency plane wave electromagnetic field excitations, when the transmission line approximation is ...

2001

A Possible Solution of the G-Dwarf Problem in the Frame-work of Closed Models with a Time-Dependent IMF

In this paper we present a method to solve the Gdwarf problem in the frame-work of analytical models (based on the instantaneous recycling approximation, IRA).We consider a one-zone closed model without inflows or outflows.We suppose a time-dependent Initi ...

2000

Fast reliable algorithms for matrices with structure

Ali H. Sayed

This book is the first to pay special attention to the combined issues of speed and numerical reliability in algorithm development. These two requirements have often been regarded as competitive, so much so that the design of fast and numerically reliable ...

Society for Industrial and Applied Mathematics1999