Category: RF/IF and RFID
What are the important properties of circularly polarized waves?
* Question
What are the important properties of circularly polarized waves?
* Answer
Circularly polarized waves have the following important [...]
What is the title of IS0/IEC l4443 international standard?
* Question
What is the title of IS0/IEC l4443 international standard?
* Answer
Identification Card - Non-Contact IC Card Proximity Card This [...]
What are the advantages of the MC68HC05SC series chip smart card?
* Question
What are the advantages of the MC68HC05SC series chip smart card?
* Answer
(1) Improve data security.
(2) Application flexibilit [...]
What are the ALOHA algorithms?
* Question
What are the ALOHA algorithms?
* Answer
1 pure ALOHA algorithm
2 slot ALOHA algorithm
3 frame slot ALOHA algorithm
4 dynami [...]
What constitutes the structure of a short frame?
* Question
What constitutes the structure of a short frame?
* Answer
The start bit S, 7 data bits bl b7 and the communication end bit E cons [...]
What are the characteristics of low frequency and high frequency RFID antennas?
* Question
What are the characteristics of low frequency and high frequency RFID antennas?
* Answer
(1) The antennas are in the form of coil [...]
What is the basic principle of face recognition technology?
* Question
What is the basic principle of face recognition technology?
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Analyze the position of each face, J, and the position infor [...]
What is the principle of parameter testing for COS functional testing?
* Question
What is the principle of parameter testing for COS functional testing?
* Answer
When the fixed command parameters P1, P2, Lc and [...]
In the RFID positioning, what are the two main methods?
* Question
In the RFID positioning, what are the two main methods?
* Answer
In RFID positioning, it is mainly divided into two categories: t [...]
What are the main standards for microwave RFID?
* Question
What are the main standards for microwave RFID?
* Answer
IS0 10374, IS0 18000-4 (2.45 GHz), IS0 18000-5 (5.8 GHz), ANSI NCITS 256 [...]