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) k, B4 }# ?. L2 j1 `% i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。! u& k5 Y- g4 h" B ]$ K
Passive tags used with Frequency Hopping Tag Reading systems operating in Section 15.247.
+ w- ] n. s3 E" y% WFrequently Asked Questions
( S% ]8 @; W) GQ: Is a passive tag subject to Certification?7 _5 U9 y, O$ D. Q* P/ I2 R
A: No, a passive tag does not contain batteries and by itself is not authorized.
' K; b4 U; c& A6 w3 zQ: Are passive tags tested for Certification? ` V0 X' G' N0 ~! k" Y7 K1 [% e
A: No, only the tag reader needs to be tested. At this time, the current technology for passive; v- i; s+ l8 M4 W
tags is such that the emission levels from the passive tags are much lower than the allowed levels) g' \1 D1 [/ e/ [3 K2 x
for the tag reader. However, even with the low emission levels, the fundamental passive tag% H4 E7 U% N# `, p) O7 t" J
emission(s) may not operate within a restricted band just as the tag reader is prohibited from* r3 }1 c# I k$ i) f, |; ?' K
operating in a restricted band. The tag reader receiver should never include restricted band/ M. U% Q; F# ~/ ]# E& J
frequencies. |
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