What does evanescent field mean?
Definitions for evanescent field
evanes·cent field
This dictionary definitions page includes all the possible meanings, example usage and translations of the word evanescent field.
Wikipedia
Evanescent field
In electromagnetics, an evanescent field, or evanescent wave, is an oscillating electric and/or magnetic field that does not propagate as an electromagnetic wave but whose energy is spatially concentrated in the vicinity of the source (oscillating charges and currents). Even when there is a propagating electromagnetic wave produced (e.g., by a transmitting antenna), one can still identify as an evanescent field the component of the electric or magnetic field that cannot be attributed to the propagating wave observed at a distance of many wavelengths (such as the far field of a transmitting antenna). A hallmark of an evanescent field is that there is no net energy flow in that region. Since the net flow of electromagnetic energy is given by the average Poynting vector, this means that the Poynting vector in these regions, as averaged over a complete oscillation cycle, is zero.
Numerology
Chaldean Numerology
The numerical value of evanescent field in Chaldean Numerology is: 9
Pythagorean Numerology
The numerical value of evanescent field in Pythagorean Numerology is: 9
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"evanescent field." Definitions.net. STANDS4 LLC, 2024. Web. 28 Apr. 2024. <https://www.definitions.net/definition/evanescent+field>.
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