Overview
Initially designed for boundary/threshold crossing applications, the Impinj Threshold antenna has a very wide beam width to maximize zone coverage. Threshold
antennas provide a consistent and continuous read zone when linearly distributed head-to-tail. At 46 x 9 x 2 cm, the Threshold antenna’s planar form factor fits readily onto fencing or other borders.
Features
• Strong far-field performance
• Wide beam width to maximize zone coverage
• Low profile form factor of 457 x 89 x 19 mm
• Optimized performance for operation from 902–928 MHz
Environmental Specifications
Parameter Typical Units Conditions/Notes
IP Rating IP54 Indoor and outdoor use
Temperature 0–40 Celsius Indoor and outdoor use
Humidity 5–95 Percent Relative, non-condensing; Performance will be
severely degraded if antenna is subjected to any standing water
RoHS N/A Designed to meet RoHS, but not certified RoHS
Electrical Specifications
Parameter Typical Conditions/Notes
Frequency range 902 to 928 MHz
Far Field Gain 5.0 dBi
HPBW (x-z plane) 60º ± 3º 3dB beam width
HPBW (y-z plane): 80º ± 3º 3dB beam width
Patern variation 10 dBi Between max and min
(x-z plane)
Polarzation Linear Parallel to short axis
VSWR* 2:1
Input Impedance 50 Ω
Input Power 30 dBm 30 dBm absolute max
ESD 2 KV Human Body Model
Mechanical Specifications
Parameter Typical Conditions/Notes
Weight 710 grams
Connector BNC plug Antenna comes standard with BNC
jack to BNC jack converter
Cable length 305 mm +/- 12 mm
Enclosure Bent sheet aluminum
Dimensions 457mm x 89mm x See drawing for detailed dimensions
12mm