Tech Library
Products & Technologies
Apr. 2022
[White Paper]
TDK Flexields are thin, flexible magnetic sheets [shields] that have numerous applications within the electronics industry. For NFC shield applications, the magnetic parameters’ behavior over frequency greatly differs in importance than for other uses. This White Paper will explain key material characteristics quantified through figures of merit, which gives the designer a better understanding of how they impact read range performance and are supported by actual testing results. Additionally, a step-by-step check list is provided to ensure the designer considers all relevant system factors when doing their magnetic shield selection process.
TDK Flexields are thin, flexible magnetic sheets [shields] that have numerous applications within the electronics industry. For NFC shield applications, the magnetic parameters’ behavior over frequency greatly differs in importance than for other uses. This White Paper will explain key material characteristics quantified through figures of merit, which gives the designer a better understanding of how they impact read range performance and are supported by actual testing results. Additionally, a step-by-step check list is provided to ensure the designer considers all relevant system factors when doing their magnetic shield selection process.
Solution Guides
Nov. 2020
[Solution Guide]
NFC is an abbreviation of Near Field Communication; it is a type of short-range wireless communications.
NFC is a function that can perform data communications and authentication when two NFC-compatible devices are brought close together, and adoption in smart phones has been growing rapidly in recent years.
Increased use in peripheral devices including wearable terminals, such as smart watches, has also been observed.
NFC is used in many situations including cashless payment and authentication of connections with peripheral devices, and it is expected to be used for even more diverse applications as we move towards a touchless society.
This article introduces the main components used in NFC circuits: NFC antenna, magnetic sheet, LC filter inductor, single-end circuit balun, and electric double-layer capacitor (EDLC/supercapacitor).
NFC is an abbreviation of Near Field Communication; it is a type of short-range wireless communications.
NFC is a function that can perform data communications and authentication when two NFC-compatible devices are brought close together, and adoption in smart phones has been growing rapidly in recent years.
Increased use in peripheral devices including wearable terminals, such as smart watches, has also been observed.
NFC is used in many situations including cashless payment and authentication of connections with peripheral devices, and it is expected to be used for even more diverse applications as we move towards a touchless society.
This article introduces the main components used in NFC circuits: NFC antenna, magnetic sheet, LC filter inductor, single-end circuit balun, and electric double-layer capacitor (EDLC/supercapacitor).