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这种产品就属于无源天线，FCC已经明确无源NFC天线无需认证，CE也如此。
. c& K4 Z- V$ Z! r! `Passive tags used with Frequency Hopping Tag Reading systems operating in Section 15.247.
1 v& m- R8 W2 c# ?0 pFrequently Asked Questions
4 T; Z+ M9 ~! @$ z) \Q: Is a passive tag subject to Certification?: S% g/ Z2 |7 U/ ~7 o
A: No, a passive tag does not contain batteries and by itself is not authorized.
2 K0 D9 E6 ?! j$ b$ VQ: Are passive tags tested for Certification?' H% A9 Z$ w( ? k" i5 Z8 L
A: No, only the tag reader needs to be tested. At this time, the current technology for passive
1 d R+ F* C! ~: R# utags is such that the emission levels from the passive tags are much lower than the allowed levels' E; m& T' G+ {) b. B
for the tag reader. However, even with the low emission levels, the fundamental passive tag# |5 d9 u" J5 U A( q
emission(s) may not operate within a restricted band just as the tag reader is prohibited from0 O2 o; b& K( U! P' R
operating in a restricted band. The tag reader receiver should never include restricted band4 |8 B4 z$ W" b; w6 w. z
frequencies. |
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发表于 2021-7-12 16:24
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