W3579 Datasheet, PDF (1/2 Pages) Pulse A Technitrol Company – Ferrite-backed Embedded

Ferrite-backed Embedded
NFC Antenna
Pulse Part Number W3579
/
The W3579 is a flexible Near Field Communication (NFC)
antenna ideal for tight-space embedded products such as
tablets, laptops, and payment terminal devices. It is intended
for secure payment or security access applications where
connect distances are constricted to keep sensitive informa-
tion safe.
The W3579 has a semi-flexible sintered ferrite backing
designed to optimize magnetic fields, thus increasing the
corresponding field strength of the antenna. The W3759 is a
thin, flexible antenna that can be fed with customer-supplied
spring clips, contacts, direct-solder methods or with the use
of Pulse’s own W9908/W9909 C-clips. Mounting the antenna
is easily accomplished using the thin but aggressive holding
adhesive backing. Recommended for mounting on the inside
of battery covers, or locations where the antenna will be on
or in close proximity to ground planes or displays.
Features
- Excellent performances on metal surfaces
- Thin, semi-flexible structure
- Easily assembles to device covers or mechanics
- Well-known antenna concept, reliable technology
- RoHS compliant product
Applications
- Mobile devices
- Payment terminals
- Sharing / pairing
Electrical Specifications
Frequency [MHz]*
13.56
40 EMVCo
Reading Distance [mm]*
28 Grid Scan (avg)
Impedance [Ω]*
50 / 80
Self Resonance Frequency [MHz]**
42
Inductance [µH]**
1.6
Resistance [Ω]**
3.60
Q-Factor**
37.8
Matched Q Value***
5-30
Environmental Specifications
Operating Temperature [°C]
-40 to +85
Mechanical Specifications
Color
Black
Dimensions [in/mm]
1.38 x 1.97 x 0.012
(35 x 50 x 0.30)
NOTE: Electrical characteristics depend on distance from metal objects and the location of the antenna on the device.
Measured in free space
* With matching network
** Bare coil without any matching network
*** With matching network (adjustable). Typical network picture refer to page 2.
San Diego, CA 858 674 8100 Vancouver, WA 360 944 7551 Europe 49 7032 7806 0 Asia 86 755 33966678 North Asia 886 3 4356768 China 86 512 6807 9998
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