for item-level reading of packedgoods, the guardwall antenna provides a
tightly controlled read zone and intense rf field, critical topenetrating deep
into packed cases. when used as a pair, the guardwall antennaabsorbs energy
from its opposing mate so that very little passes beyond theexterior face. this
configuration maximizes stray read rejection by constraining theread zone to
the area within the two antennas. it also increases readreliability by maximizing
the intensity within the read zone. the guardwall measures 70 x 40x 10 cm and
smoothly integrates into conveyor systems. two separate modelssupport the uhf
frequency ranges for europe (865–868 mhz) and north america(902–928 mhz).
性能参数
environmental specifications
parameter typical units conditions/notes
ip rating ip51 indoor use only
temperature 0–40 ○c indoor use only
humidity 5–95 % relative, non-condensing
rohs n/a designed to meet rohs, not certified rohs
electrical specifications
parameter typical units conditions/notes
frequency range (fcc) 902–928 mhz north america
far field gain 6 dbi
polarization rhcp & lhcp
dual elements with separate
connectors for two circular
polarizations (rhcp and lhcp)
axial ratio (max) 3 db
3-db beamwidth 55 deg
front to back ratio 22 db
vswr1 1.5:1 50 ω reference
input power 30 dbm 30 dbm absolute max
1
mechanical specifications
parameter typical units conditions/notes
weight
11 lbs.
5 kgs.
lbs/kgs
connector 2x sma female requires accessory cable to connect toreader’s
rp-tnc connector
radome abs designed to meet rohs, not certified rohs
backplane aluminum, alloy 5052 h32 class 3 iridite finish
enclosure aluminum, painted black designed to meet rohs, notcertified rohs
dimensions
27.6 in. x 15.8 in. x 2.9 in.
702 mm. x 402 mm. x 73 mm.
in/mm see drawing for detailed dimensions

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纬锦信息技术（上海）有限公司
陈先生
13621791589
上海市闵行区联航路1588号（国家八六三基地）1A304室