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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。
& E- e* L+ t$ u) ?. aPassive tags used with Frequency Hopping Tag Reading systems operating in Section 15.247.
5 H Z3 j, Z8 l5 @! X% q' N" kFrequently Asked Questions6 H, W9 k' G, j: J6 D
Q: Is a passive tag subject to Certification?4 n4 ^- t0 V" O. j+ g: R: v5 W
A: No, a passive tag does not contain batteries and by itself is not authorized.
; @# M0 ?0 A, V- \+ c1 m/ PQ: Are passive tags tested for Certification?8 g5 m/ r+ [2 I1 |5 e
A: No, only the tag reader needs to be tested. At this time, the current technology for passive O. c N6 f/ N4 D" @- o8 s- Y
tags is such that the emission levels from the passive tags are much lower than the allowed levels+ t G# ^& M, b' b
for the tag reader. However, even with the low emission levels, the fundamental passive tag
2 k! o- k& _3 {1 c) G; N7 z$ h8 Hemission(s) may not operate within a restricted band just as the tag reader is prohibited from. }) m' { G* w* i F
operating in a restricted band. The tag reader receiver should never include restricted band3 W5 z$ V0 S* c) @# m
frequencies. |
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