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application guide printed circuit board rfid devices lxms series www.murataamericas.com/rf d
application guide 1 features applications magicstrap? use cases z z compact size (3.2 x 1.6 x 0.7mm) z z operating frequency C 860-960mhz z z 512 bits user memory z z epc global gen2 / iso 18000-6c compatible z z secure with long data retention z z 4 to 5 meter read range is possible z z utilizes ground as pcb ground as antenna z z reference antenna designs available z z esd protection up to >2kv z z fully rohs compliant z z it C pc, server, modem, mobile phone z z consumer C stb, dtv, dvd, audio z z automotive C instrument panel, audio... z z industry C smart meters, inverters z z home appliances C stove, refrigerator z z ems C value added services z z specialty applications C durable tags z z gaming C portable, stationary muratas magicstrap? is the latest in uhf rfid chip development, designed to be placed on the printed circuit board (pcb). the integrated module eliminates many of the frustrations previously encountered by design engineers looking to incorporate rfid into their project. by following some basic and simple guidelines, the antenna is designed into the pcbs ground plane. this represents a permanent and cost e? ective antenna solution. once mounted, information can be stored and retrieved on magicstrap? using any epcglobal gen2 / iso 18000-6c compatible uhf reader/ writer. pcb traceability product authenticity inventory control firmware revision tracking warranty tracking
application guide 2 product lineup part number breakdown dimensions (mm) part number type * ic epc user memory tid op temp lxms31acna-009 1 nxp g2xm up to 240bits 512bits 64bits -40c to +85c lxms31acna-010 2 lxms31acna-011 3 lxms31acna-012 4 lxms31acmd-140 0 impinj monza4qt up to 128bits 512bits 64bits LXMS31ACMD-141 1 lxms31acmd-142 2 lxms31acmd-143 3 lxms31acmd-144 4 * type refers to the impedance value and recommended antenna reference design p roduct s eries size: 3.2 x 2.5mm electrode code: a = external serial no. ic: na = nx p g2x m md = monza4qt carrier: c = t&r lxms 3 1 a c a c -009 mark dimensions mark dimensions l 3.2 0.2 b1 0.18 0.18 w 1.6 0.2 b2 0.18 0.18 t 0.7 max. d 0.7 0.1 a 1.25 0.1 - -
application guide 3 recommended land pattern design magicstrap? block diagram integrated circuit m e m o r y contr o lle r a n a log f r ont e n d m a t c hing circuit recommended land pattern (smt process) recommended land pattern (adhesive attachment)
application guide 4 electrical parameters read range magicstrap? p/n lxms31acmd-140 lxms31acna-009 LXMS31ACMD-141 lxms31acna-010 lxms31acmd-142 lxms31acna-011 lxms31acmd-143 lxms31acna-012 lxms31acmd-144 impedance value @866.6mhz r 50 15 12 25 80 x 0 -45 -107 -200 -405 @915.0mhz r 50 25 12 25 80 x 0 -45 -107 -200 -420 @953.0mhz r 50 30 9 20 60 x 0 -48 -105 -195 -425 z z frequency range: 865 C 955mhz z z minimum operating power: -8dbm z z electrical characteristics at minimum operating power (ta=25c, unit: ?) parameter 4w eirp @ 915mhz note: distances measured with 4w eirp reader, 6dbi circularly polarized antenna, at 915 mhz; magicstrap? using nxp g2xl/m.
application guide 5 reference antenna design and performance type 1 actual read range read range (m) by freq (mhz) directivity simulation according to min. operating power pcb size usa japan pcb size usa japan l x w (m) (m) l x w (cm) (cm) 20 x 6cm 0.5 0.4 20 x 6cm 3.0 1.0 14 x 4cm 1.0 0.8 14 x 4cm 10.0 0.8 10 x 4cm 0.7 0.5 10 x 4cm ** ** 6 x 4cm 0.1 0.1 6 x 4cm ** ** 30dbm, 6db1 (4w eirp) w/circularly polarized wave *reader/writer: csl-461 ** 2mm read range is available with loop antenna 10dbm, 6db1 (40mw eirp) w/linearly polarized wave
application guide 6 reference antenna design and performance type 2 actual read range read range (m) by freq (mhz) directivity simulation according to min. operating power pcb size usa japan pcb size usa japan l x w (m) (m) l x w (cm) (cm) 20 x 6cm 1.4 1.1 20 x 6cm 5 3 14 x 4cm 2.5 2.0 14 x 4cm 20 10 10 x 4cm 1.6 1.6 10 x 4cm 5 10 6 x 4cm 0.6 0.5 6 x 4cm ** ** 30dbm, 6db1 (4w eirp) w/circularly polarized wave *reader/writer: csl-461 ** 2mm read range is available with loop antenna 10dbm, 6db1 (40mw eirp) w/linearly polarized wave
application guide 7 reference antenna design and performance type 3 actual read range read range (m) by freq (mhz) directivity simulation according to min. operating power pcb size usa japan pcb size usa japan l x w (m) (m) l x w (cm) (cm) 20 x 6cm 3.2 2.6 20 x 6cm 40 30 14 x 4cm 5.0 4.3 14 x 4cm 60 45 10 x 4cm 3.6 3.6 10 x 4cm 40 30 6 x 4cm 1.4 1.4 6 x 4cm 15 15 30dbm, 6db1 (4w eirp) w/circularly polarized wave *reader/writer: csl-461 ** 2mm read range is available with loop antenna 10dbm, 6db1 (40mw eirp) w/linearly polarized wave
application guide 8 reference antenna design and performance type 4 actual read range read range (m) by freq (mhz) directivity simulation according to min. operating power pcb size usa japan pcb size usa japan l x w (m) (m) l x w (cm) (cm) 20 x6 cm 5.0 3.0 20 x 6cm 40 20 14 x 4cm 5.0 3.0 14 x 4cm 45 30 10 x 4cm 5.0 3.0 10 x 4cm 50 30 6 x 4cm 4.6 3.5 6 x 4cm 50 40 30dbm, 6db1 (4w eirp) w/circularly polarized wave *reader/writer: csl-461 ** 2mm read range is available with loop antenna 10dbm, 6db1 (40mw eirp) w/linearly polarized wave
application guide 9 pcb design rules to maximize read range 1 C position of magicstrap? on pcb: magicstrap? should be centered on the long side of the pcb to maximize read range. the following illustrates the relationship between x length and read range using type-3 board design. 2 C eliminate conductive material under magicstrap?: all layers beneath magicstrap? should be free of conductive material. this area should be equal or larger then the top layer antenna design to maximize read range. the example below is using type 3 design. length x (cm) read range (m) 5 3.6 2 2.5 1 1.6 top pcb layer (antenna interface) other layers accep table board d esigns unaccep table board d esigns
application guide 10 pcb design rules to maximize read range 3 C metal enclosure under printed circuit board: when the pcb is in close proximity to the metal enclosure, sensitivity is reduced. removing material directly under the magicstrap? antenna pattern will greatly improve sensitivity. 4 C antenna location on pcb location of the pcb antenna should be located closest to the edge of the pcb, as shown below in dark green. variations of ideal design are also acceptable. ideal antenna location variations of antenna design multi layer antenna using via hole indentation via copper on anoth er lay er
11 prototyping using magicstrap? incorporate reference design and produce pcb select one of murata? s mini-pcb prototy p e boards based on desired read range and available board space good e nough? n o o k select board locatio n for magicstrap? and remove resist material solder the mini-pcb prototy p e board, verify functionality and performance using reader / writer application guide
www.murataamericas.com/rfd ? april 2, 2012 murata americas head office 1-10-1, higashi kotari 1-chome nagaokakyo-shi, kyoto 617-8555, japan phone: 81-75-951-9111 international division 3-29-12, shibuya 3-chome, shibuya-ku, tokyo 150-0002 japan phone: 81-3-5469-6123 murata americas murata electronics n.a., inc. (regional hq) 2200 lake park drive smyrna, ga 30080-7604, usa. phone: 1-770-436-1300 fax: 1-770-436-3030 for additional information visit: www.murataamericas.com/rfid murata (china) investment co., ltd. lane 318 yonghe road zhabei district, shanghai 200072, china phone: 86-21-3205-4616 fax: 86-21-3205-4617 murata europe murata electronics europe b.v. (regional hq) daalmeerstraat 4, 2131hc hoofddorp the netherlands phone: +31-(0)23-5698360 fax: +31-(0)23-5698361 taiwan murata electronics co., ltd. no 225 chung - chin road, taichung, taiwan phone: 886-4-2425-4151 murata electronics singapore (pte.) ltd. 200 yishun avenue 7 singapore, 768927 tel: 65-6758-4233 fax: 65-6758-2026

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