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![Near field communication - Wikipedia, the free encyclopedia]()
en.wikipedia.orgNear field communication (NFC) is a set of standards for smartphones and similar devices to establish radio communication with each other by touching them together or bringing them into proximity, usually no more than a few inches. Present and anticipated瀏覽：1287 -
![Near field communication - Wikipedia, the free encyclopedia]()
en.wikipedia.orgNear field communication (NFC) is a set of standards for smartphones and similar devices to establish radio communication with each other by touching them ...瀏覽：628
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日期：2025-03-16
The near field (or near-field) and far field (or far-field) are regions of the electromagnetic field ......
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日期：2025-03-13
The near field (or near-field) and far field (or far-field) are regions of the
electromagnetic field around an object, such as a transmitting antenna, or the
result of ......
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日期：2025-03-14
8 Jun 2012 ... An explanation of electromagnetic radio waves detailing the near and far fields
and how they are propagated....
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日期：2025-03-13
Near-Field Systems NSI is the world leader in providing turn-key near-field antenna measurement systems with over 450 systems delivered worldwide. NSI offers systems ranging in size from tabletop designs to large precision systems for a wide variety of .....
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日期：2025-03-19
Field regions for the radiation pattern of antennas are discussed The far field and near field in particular, are defined in terms of distance from an antenna. ... The fields surrounding an antenna are divided into 3 principle regions: Reactive Near Field...
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日期：2025-03-14
Field regions for the radiation pattern of antennas are discussed The far field and near field in particular, are defined in terms of distance from an antenna....
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日期：2025-03-18
Any antenna can be successfully measured on either a near-field or far-field range, with ... this makes generalized comparisons between near-field and far-field ......
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日期：2025-03-18
This is why the far field wave front is considered planar and ... crossover distance between near and far fields (R ) is taken to be where the phase error is 1/16 of ......
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