Laird YF45018 UHF / LTE B31 Yagi Antenna

Product Code



Design Type

Application Category


RF Category

Laird's patent pending premium series directional Yagi antennas are either fully gold, or fully black, anodized for corrosion resistance. All UHF and above frequency antennas feature internal matching to assure broad bandwidth and resistance to severe weather conditions. There is no gamma match to ice up, corrode or detune. Our engineering staff has optimized the product family for forward gain by computer analysis and then field-tested each for conformance. The mechanical construction has been further enhanced to have an ingress protection rating of IP67.

Typical applications include transportation such as railroad switching, remote locations reporting examples that include oil fields, weather conditions and, meter data transmissions for utilities.

  • Tuned to full 450 to 490 MHz band
  • Suitable for LTE B31 (450 MHz)
  • IP67 ingress protection rating
  • Available in a range of finishes and sizes
Antenna Technical Data
Physical Characteristics
Construction Material
RF Connections
Radome Colour Environmental Rating
457 x 305 x 98 mm (L x W x D)
Operating Temperature -30 °C to 70 °C
1.3700 kg
UHF Yagi Element
Electrical Specifications Mechanical Specifications
Input Impedance 50 Ω Input Connector
Polarisation Input Connector Gender
Max. Input Power 250 W Cable Series
PIM, 3rd Order - Cable Length 610 mm
Range: 450 to 490 MHz
Peak Gain 8.60 dBi Azimuth Beamwidth 90°
VSWR < 1.7:1 Elevation Beamwidth 62°
Radiation Efficiency No Data Electrical Tilt
Front-to-Back Ratio > 15 dB Inter-Port Isolation -
Cross-Polar Discrimination - Cross-Polar Isolation -

Laird Technologies

Laird Technologies logo

Laird Technologies, Inc. designs, develops, manufactures, and supports wireless systems solutions and performance materials for wireless and other advanced electronics applications. Its wireless systems solutions include infrastructure antenna systems, embedded wireless modules, telematics and wireless M2M solutions, wireless automation and control solutions, and connectivity products.

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