l153.a (11/12) 1 pulseelectronics.com/products/antennas nfc wire loop antenna pulse part number w7002 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 / the w7002 is a wire loop on plastic carrier product ideal for integration into products such as payment terminal devices or security access and control panels. by design, this antenna can be mounted around lcd or other types of displays, or placed around numeric keypads or control keypads. the w7002 ofers mounting features for machine screws or, with a partnered design approach, snapped into position using snap features. this part can be quickly changed to meet the needs of end-product by changing form-factor, and feeding mechanism. features - optimized for metal proximity within the device - lcd module can be placed inside the antenna perimeter - ready mounting features to device mechanics - well-known antenna concept ready for production - rohs compliant product applications - portable and fxed devices - payment, sharing, pairing and connect to tags standards - iso/iec 14443 a / b (mifare) - iso/iec 18092 - jis x 6319-4/felica) - nfcip-1 / ecma 3-40 environmental specifcations operating temperature [c] -40 to +85 mechanical specifcations color black dimensions [in/mm] 3.72 x 2.24 x 0.14 (94.6 x 56.8 x 3.65) electrical specifcations frequency [mhz]* 13.56 reading distance [mm]* 40 emvco 35 grid scan (avg) impedance [ ]* 50 / 80 self resonance frequency [mhz]** 89 inductance [ h]** 0.65 resistance [ ]** 0.95 q-factor** 57 matched q value*** 5-30 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.
2 pulseelectronics.com/products/antennas nfc wire loop antenna pulse part number w7002 l152.a (11/12) 2 pulseelectronics.com/products/antennas recommended matching network component value note lem c 560 nh filter resonance at 15.4 mhz cemc 180 pf filter resonance at 15.4 mhz c1 25 pf antenna matching component, value depends on the antenna environ - ment antenna matching c2 180 pf antenna matching component, value depends on the antenna includes c2a and c2b values) environment antenna matching rq 0 ohm rq resistors used to lower q-value input emc filter matching q-factor output to antenna
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