2 edition of Near-field and far-field excitation of a long conductor in a lossy medium found in the catalog.
Near-field and far-field excitation of a long conductor in a lossy medium
David A. Hill
by Electromagnetic Fields Division, Center for Electronics and Electrical Engineering, National Engineering Laboratory, National Institute of Standards and Technology, Available from National Technical Information Service in Boulder, Colo, [Springfield, Va
Written in English
Distributed to depository libraries in microfiche.
|Other titles||Near field and far field excitation of a long conductor in a lossy medium.|
|Statement||David A. Hill.|
|Series||NISTIR -- 3954.|
|Contributions||Center for Electronics and Electrical Engineering (U.S.). Electromagnetic Fields Division.|
|The Physical Object|
These are the Interaction Notes, EMP-3, Notes , assembled by Dr. Carl E. Baum. Search is simple: just type whatever comes to mind in the search box, hit Enter or click on the Google Search button, and Google will search the entire Summa Website for pages or documents that are relevant to your query. Feb 26, · David Hill reformulated the problem for the case of finite length conductors and non-uniform illumination by a magnetic dipole source. (“Near field and Far field Excitation of a Long Conductor in a Lossy Medium”, report NISTIR, National Institute .
Dec 26, · Right-hand rule can be used to find the direction of the magnetic field produced due to current flow. Right-hand rule: Grasp the wire with right hand so that the thumb points in the direction of the conventional current, then the wrapped fingers will . A surface integral equation solver is proposed for fast and accurate modeling of large-scale electromagnetic structures in stratified media. The single-source differential surface admittance operator, previously proposed for conductors in free space, is extended to conductors in stratified media, and accelerated with the adaptive integral method (AIM) for scalability. AIM is developed for a Author: autohelp.club
The lossy conducting medium makes up Region 1 with a second medium that makes up Region 2 sharing a boundary interface with the lossy conducting medium The guided surface waveguide probe c includes a feed network that couples an excitation source to the charge terminal T 1 and the compensation terminal T 2. Separate field lines before the wire is places between the magnet's poles. The Moving-Coil Speaker Many Magnetic Field Lines = Many Fingers (N to S) One Current = One Thumb Force = Palm (That's how you smack someone, right?) Faraday determined that the magnetic field of a.
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Near-Field and Far-Field Excitation of a Long Conductor in a Lossy Medium. Published. September 1, Author(s) David A. Hill. Citation. NIST Interagency/Internal Report (NISTIR) - Report Number.
NIST Pub Series. NIST Interagency/Internal Report (NISTIR) Pub Type. NIST Pubs. autohelp.club by: 2. Get this from a library. Near-field and far-field excitation of a long conductor in a lossy medium. [David A Hill; Center for Electronics and Electrical Engineering (U.S.).
Electromagnetic Fields Division.]. Get this from a library. Near-field and far-field excitation of a long conductor in a lossy medium.
[David A Hill; National Institute of Standards and Technology (U.S.)]. Near-field and far-field excitation of a long conductor in a lossy medium: Authors: Hill, D.
Excitation of currents on an infinitely long conductor is analyzed for horizontal electric dipole or line sources and for a plane-wave, far-field source. Numerical results for these sources indicate that long conductors produce a strong. A near-field sampling followed by a near-field/far-field (NF/FF) transformation is therefore substituted.
This process is, in most cases, applied to antennas placed in free-space or over a perfect. Electromagnetic pulse excitation of finite- and infinitely-long lossy conductors over a lossy ground plane Article in Journal of Electromagnetic Waves and Applications 31(2) ·. In the case that the lossy conducting medium comprises a terrestrial medium or Earth, the second medium can comprise the atmosphere above the ground.
As such, the atmosphere can be termed an “atmospheric medium” that comprises air and other Cited by: We use Maxwell’s E - and H-fields equations for lossy medium to obtain the average SAR of the medium between the transmitting and the receiving antenna in the far field and near field, respectively.
WBAN applications involve wireless communications between implanted biosensor nodes inside Cited by: 2. The near field and far field are regions of the electromagnetic field (EM) around an object, such as a transmitting antenna, or the result of radiation scattering off an object.
Non-radiative 'near-field' behaviours of electromagnetic fields dominate close to the antenna or scattering object, while electromagnetic radiation 'far-field'. The polyphase waveguide probe is disposed above a lossy conducting medium according to an embodiment of the present disclosure.
The lossy conducting medium makes up Region 1 (FIG. 2) according to one embodiment. In addition, a second medium shares a boundary interface with the lossy conducting medium and makes up Region 2 (FIG. 2).Cited by: Sep 01, · Near-field optics, dealing with the interaction between optical field and matter in the nanometric region, has become an interdisciplinary field spaning physics, chemistry, materials science, electrical engineering and high density data storage.
This book reflects the recent status of this rapidly growing field. The current paper begins with presentation of the governing equations describing the levitation mechanism.
Next, based on former numerical schemes (e.g. ), it is shown that the dynamics of the levitated object can be represented as a superposition of slow and fast autohelp.club by: In the far field, the fied decay as 1 2 Source Conducting medium velocity: c/n 2 exp(ik1h+ik2r • The near-field effect exists without SPP!.
20x10 3 15 10 5 0 Energy density x10 12 0 Solution for a non-lossy medium Dispersion relation K2. Photoluminescence spectra of the ALS dots by the near-field optical microscope.
The excitation power was estimated to be 90 W/cm 2. The spectra of macro-photoluminescence is shown by a dashed line. The two sets of multiple emission peaks in the NSOM spectra correspond to the ground-state and the first excited-state.
Jan 22, · Other methods of SPP excitation is based on grooves and near-field highly focused optical beams 12,13,20, Relation between SP and ZW Author: Sai Kiran Oruganti, Sai Kiran Oruganti, Feifei Liu, Dipra Paul, Jun Liu, Jagannath Malik, Ke Feng, H.
Start studying Chapter 4 (X-ray Circuit). Learn vocabulary, terms, and more with flashcards, games, and other study tools. Fundamentals of Applied Electromagnetics is intended for use in one- or two-semester courses in electromagnetics.
It also serves as a reference for engineers. Widely acclaimed both in the U.S. and abroad, this authoritative text bridges the gap between circuits and new electromagnetics material. A negatively-charged plastic rod is brought close to (but does not touch) a neutral metal sphere that is connected to the ground.
After waiting a few seconds, the ground connections is removed (without touching the sphere), and after that the rod is also removed. where is the current density (i.e., the current per unit area), the electric field-strength, and a constant known as the electrical conductivity of the medium in question.
The -directed propagation of a plane electromagnetic wave, linearly polarized in the -direction, through an Ohmic conductor of conductivity is governed by (see Appendix C).
– Local field excitation – External field excitation • Eigenvalue – Cavity resonances – Progagating modes. RF Physics Interfaces • 3D Waves for single+ground conductor structures and full capacitance matric output for multiconductor devices.
High. Far-field optical lens resolution is fundamentally limited by diffraction, which typically is about half of the wavelength. This is due to the evanescent waves carrying small scale information from an object that fades away in the far field.
A recently proposed superlens theory offers a new approach by surface excitation at the negative index medium. We introduce a far-field optical superlens Cited by: Free flashcards to help memorize facts about Understanding the principles of electromagnetism.
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