Threshold Antenna

  • Threshold Antenna

Threshold Antenna

RFID HARDWARE – Antennas – Threshold Antenna

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 headto- tail. At 46 x 9 x 2 cm, the Threshold antenna’s planar form factor fits readily onto fencing or other borders.


• 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 865–868 MHz


  • Access control
  • Library / documents / media and files
  • Sport timing solutions and people identification



IP Rating: IP54. Indoor and outdoor use

Temperature: -25–55 ○C. Indoor and outdoor use

Humidity: 5–95%. Relative, non-condensing. Performance will be severely degraded if antenna is subjected to any standing water

RoHS: N/A. Designed to meet RoHS, not certified RoHS



Frequency Range: 865 to 868 MHz

Far Field Gain: 5.0 dBi

HPBW (x-z plane): 50º+3º Deg. 3 dB beam width

HPBW (y-z plane): 100º+3º Deg. 3 dB beam width

Pattern Variation (x-y plane): 14 dBi. Between max and min

Polarization: Linear. Parallel to short axis

VSWR: 1.5:1

Input Impedance: 50 Ω

Input Impedance: 30 dBm. 33dBm absolute max

ESD: 2 KV. Human Body Model



Weight: 710 grms

Connector: SMA Female

Cable length: n/a

Radome: ABS

Enclosure: Bent sheet aluminum. Clear finish

Dimensions: 457 x 89 x 19 mm. See drawing for detailed dimensions

Threshold Antenna