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Author: L.B. Felsen
Publisher: Springer
ISBN: 9783662309070
Category : Science
Languages : en
Pages : 274
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Book Description
Author: L.B. Felsen
Publisher: Springer
ISBN: 9783662309070
Category : Science
Languages : en
Pages : 274
Get Book Here
Book Description
Author: L.B. Felsen
Publisher: Springer Science & Business Media
ISBN: 3540380957
Category : Science
Languages : en
Pages : 289
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Book Description
Author: Hans J. Schmitt
Publisher:
ISBN:
Category : Antennas (Electronics)
Languages : en
Pages : 44
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Book Description
The receiving and transmitting properties of small linear antennas, conical antennas, and loops for transient electromagnetic fields were investigated experimentally. Short electrical dipoles loaded by a capacitance represented by a cathode follower can be used successfully for the measurement of transient fields with rise times of less than 1 nanosecond, if the first antenna resonance is suppressed by a series resistor at the base of the antenna. The currents induced on nonresonant structures by transient electromagnetic fields are investigated and their application to a direct measurement of the time sequence of the electromagnetic field is discussed. Signals with a simple and known time dependence such as a unidirectional pulse can be radiated into space if the reflection of current waves at discontinuities of the antenna structure is avoided. In a manner similar to that useful for the absorption of continuous waves in media with a stratified conductivity, it is shown that reflections at discontinuities can be avoided by dipoles with tapered resistive loading. (Author).
Author: Charles W. Harrison
Publisher:
ISBN:
Category : Antennas (Electronics)
Languages : en
Pages : 44
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Book Description
Author: Yuriy K. Sirenko
Publisher: Springer
ISBN: 0387325778
Category : Science
Languages : en
Pages : 367
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Book Description
This book describes a systematic approach to scattering of transient fields which can be introduced in undergraduate or graduate courses. The initial boundary value problems considered describe the transient electromagnetic fields formed by open periodic, compact, and waveguide resonators. The methods developed and the mathematical and physical results obtained provide a basis on which a modern theory for the scattering of resonant non-harmonic waves can be developed.
Author: Charles W. Harrison
Publisher:
ISBN:
Category : Antennas (Electronics)
Languages : en
Pages : 20
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Book Description
Author: Robert Frans Remis
Publisher:
ISBN: 9789040717512
Category : Electromagnetic fields
Languages : en
Pages : 111
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Book Description
Author: Victor F. Hermosillo
Publisher:
ISBN:
Category :
Languages : en
Pages : 7
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Book Description
Author: Neil R. Sheeley, Jr.
Publisher: Springer Nature
ISBN: 3030402649
Category : Science
Languages : en
Pages : 231
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Book Description
This book is an original study aimed at understanding how vacuum magnetic fields change with time. Specifically, it describes the waves that radiate from a sphere when the electric current on its surface is turned on or off, either suddenly, gradually, or periodically. Numerical simulations are an invaluable source of information about this and related subjects, but they are often more difficult to interpret than exact, closed-form solutions that can easily be applied to a variety of situations. Thus, the objective here is to obtain an exact solution of Maxwell’s equations in closed form—something simple, yet rigorous, which can be used as a model for understanding transient magnetic fields in more complicated situations. The work therefore stands as a self-contained solution of Maxwell’s equations for an electric current wrapped around the surface of a sphere. This study assumes a strong background in electromagnetism or a related research area. Online animations are available for each figure to better illustrate the motions of magnetic field lines.
Author:
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ISBN:
Category :
Languages : en
Pages :
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