Short Range RFID Antennas

Impinj Mini-Guardrail RFID Antenna

Specifically designed for demanding item-level deployments, Impinj’s Mini-Guardrail reader antenna operates effectively at read distances of 7.5 cm or less. This antenna is the ideal choice for access control, ticketing, document control, high-speed encoding stations, packaging lines, or any application requiring high reliability and a constrained read zone.

Impinj Mini-Guardrail Product Description

Because of its optimized short-range performance, the Mini-Guardrail antenna is virtually immune to the RF-transmission limiting effects of items such as liquids, powders, and metallic packaging. The Mini-Guardrail antenna’s short-range (0-7.5 centimeters) read zone makes it the ideal choice for a wide variety of item-level applications.


  • Strong near-field performance for
  • reading tags at a distance of 0-7.5 cm
  • Small form factor of 70 x 133 x 19 mm
  • Weak far-field gain to minimize stray reads
  • Broadband design to enable world-wide operation
  • Frequency Range 865 to 954 MHz Broadband for use in allregions
  • Near Field Intensity -13 dBA/m Center of antenna 1 cm from radome, 30dBm input power
  • Far Field Gain -20 dBi
  • Polarization Linear Parallel to short axis
  • VSWR1 1.25:1 Center of band
  • Input Impedance 50 Ω
  • Input Power 30 dBm 33dBm absolute max
  • ESD 2 KV Human Body Model