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# k; Y3 `& F! {: ?/ w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。
: g h/ ~& W4 J* ePassive tags used with Frequency Hopping Tag Reading systems operating in Section 15.247.1 _% c5 } R9 P3 A# R( ^
Frequently Asked Questions6 O3 G& H2 B+ `! N/ {
Q: Is a passive tag subject to Certification?+ A9 v$ C9 v/ y2 c9 j Y2 H* G2 |
A: No, a passive tag does not contain batteries and by itself is not authorized.* Q4 p) U: d6 ^# P
Q: Are passive tags tested for Certification?& [/ |$ q. U8 |5 F" g( z& u9 u/ z. [
A: No, only the tag reader needs to be tested. At this time, the current technology for passive
/ \' C7 D2 Y0 N& ^+ `0 x+ ~tags is such that the emission levels from the passive tags are much lower than the allowed levels
+ T6 `; M5 ^! f- x i+ Hfor the tag reader. However, even with the low emission levels, the fundamental passive tag
/ @0 `5 W1 S$ z, temission(s) may not operate within a restricted band just as the tag reader is prohibited from" M, H% h/ b$ `. E" `& k
operating in a restricted band. The tag reader receiver should never include restricted band
' V2 ^9 N. x# c" W' Y% E) z8 nfrequencies. |
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发表于 2021-7-12 16:24
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