Ad
A.T. de Hoop
Authored
20 records found
Transient waves along electrical transmission lines
Waves in (1+1)-spacetime
The properties of transient waves along electrical transmission lines are investigated. In particular, the excitation of the waves by impressed voltage and electric current sources is studied. Specific choices of this excitation are shown to lead to 'one-sided transmission' only.
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A full analytic time-domain analysis is presented for a canonical problem of electromagnetic interference related to the operation of integrated-circuit devices at optical frequencies, where metal screens and substrates can no longer be characterized as perfect electrical conduct
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A full time-domain analysis is presented of the radiation properties of array antennas composed of identical, mutually translationally shifted, pulsed electric-current excited elements. An expression is derived for the radiated field in the farfield region, the parameters in whic
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A general class of 3d perfectly matched, i.e. relfectionless, Cartesian embeddings (perfectly matched layers in the three coordinate directions) is analyzed with the aid of a combined time-domain Green's function technique and a time-domain, causality-preserving, Cartesian coordi
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A general class of 3d perfectly matched, i.e. relfectionless, Cartesian embeddings (perfectly matched layers in the three coordinate directions) is analyzed with the aid of a combined time-domain Green's function technique and a time-domain, causality-preserving, Cartesian coordi
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Analytic time domain expressions are derived for the pulsed electromagnetic field radiated by a narrow slot antenna with a dielectric layer in a two-dimensional model configuration. In any finite time window of observation, exact pulse shapes for the propagated, reflected, and re
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Analytic time domain expressions are derived for the pulsed electromagnetic field radiated by a narrow slot antenna with a dielectric layer in a two-dimensional model configuration. In any finite time window of observation, exact pulse shapes for the propagated, reflected, and re
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The pulse shapes of fields and waves excited by impulsive point sources in motion are analyzed through the application of a general Green¿s function procedure. Time-domain solutions to the scalar wave equation, the scalar dissipative wave equation (amongst which the relativistic
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A variational approach to the analysis of the natural decay rates and eigenmodes of cavity-enclosed diffusive fields in general anisotropic and heterogeneous materials is presented. In the bulk material, diffusivity and volume relaxivity are accounted for. The interaction of the
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A variational approach to the analysis of the natural decay rates and eigenmodes of cavity-enclosed diffusive fields in general anisotropic and heterogeneous materials is presented. In the bulk material, diffusivity and volume relaxivity are accounted for. The interaction of the
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A closed-form analytic time-domain expression is obtained for the scalar wave function associated with the reflection of a point-source excited impulsive spherical wave by a planar boundary with absorptive and dispersive properties. The physical properties of the boundary are mod
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This paper presents a survey and a number of experiments with the (relatively new) Integrated Field Equations method for Maxwell's equations. It starts out with a summary of the method, followed by a number of test cases in which its special properties, in particular its ability
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This paper presents a survey and a number of experiments with the (relatively new) Integrated Field Equations method for Maxwell's equations. It starts out with a summary of the method, followed by a number of test cases in which its special properties, in particular its ability
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This paper presents a survey and a number of experiments with the (relatively new) Integrated Field Equations method for Maxwell's equations. It starts out with a summary of the method, followed by a number of test cases in which its special properties, in particular its ability
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This paper presents a survey and a number of experiments with the (relatively new) Integrated Field Equations method for Maxwell's equations. It starts out with a summary of the method, followed by a number of test cases in which its special properties, in particular its ability
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The pulsed electromagnetic field radiated by distributed electric-current and magnetic-current sources in uniform translational motion is analyzed within the framework of the special theory of relativity. The relevant Lorentz transformations are used to exhibit the general struct
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Signal integrity in the far-field radiation from pulse-train excited array antennas is studied via full timedomain instruments. The disturbance in the received signal is related to the fidelity factor. At any point in our analysis, the disturbance is evaluated based on a reduced,
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