Near and far field

（重定向自Far field）

$Differences between Fraunhofer diffraction and Fresnel diffraction$

Far field: The radiation pattern can extend into the far field, where the reactive stored energy has no significant presence.

The near field and far field are regions of the electromagnetic field around an object, such as a transmitting antenna, or the result of radiation scattering off an object. Non-radiative 'near-field' behaviors of electromagnetic fields dominate close to the antenna or scattering object, while electromagnetic radiation 'far-field' behaviors dominate at greater distances.

单词	Far field
释义	Far field 原声例句英国王室演讲集 Never ever underestimate what this means for each other within your community or further a field. 永远不要低估这对于你们的社区或某个领域中对于彼此的意义。陪你入睡 There is something… Here's… Whoa boy, we're gonna go way far field. 有东西… … 这是… … 哇，男孩，我们要走很远的路。英语百科 Near and far field （重定向自Far field） $Differences between Fraunhofer diffraction and Fresnel diffraction$ The near field and far field are regions of the electromagnetic field around an object, such as a transmitting antenna, or the result of radiation scattering off an object. Non-radiative 'near-field' behaviors of electromagnetic fields dominate close to the antenna or scattering object, while electromagnetic radiation 'far-field' behaviors dominate at greater distances.
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