3148B Log-Periodic Dipole Array - ETS-Lindgren
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Key Features

  • High Gain Meets CISPR Cross Polarization Requirements
  • Low VSWR
  • Powder Coated Finish
  • Individually Calibrated
  • Download PDF Datasheet
  • ETS-Lindgren's Model 3148B Log-Periodic Dipole Array (LPDA) Antenna is specifically designed for making CISPR 16-1 measurements which require a 20 dB difference in the cross polarization rejection. This is achieved using an engineering design and manufacturing process that offsets all of the elements in a precision pattern. The excellent cross-polarization property ensures minimum measurement uncertainty for radiated emissions and normalized site attenuation measurement.

    The precision construction of the assembly of the boom and elements result in excellent VSWR and optimal phase relationship. The model 3148B log antenna features relatively constant linear gain (measures in far field without any sudden dips or bumps). A Type N connector is provided.

    View the 3148B Log-Periodic Dipole Array technical specifications below

    Physical Specifications

    Depth: 86.7 cm (34.13 in)
    Height: 11.6 cm (4.57 in)
    Length: 73.7 cm (29.02 in)
    Width: 85.6 cm (33.70 in)
    Weight: 2 kg (4.41 lb)

    Electrical Specifications

    Frequency Minimum: 200 MHz
    Frequency Maximum: 2 GHz
    Connectors: Type N (f)
    Impedance (Nominal): 50
    Maximum Continuous Power: 1 kW
    Peak Power: 1.3 kW
    VSWR: 1.2:1
    Polarization: Linear
    Pattern Type: Directional

    Product Configuration

    • Individually Calibrated at 1 m per SAE ARP 958
    • Actual Antenna Factors and Signed Certificate of Calibration Conformance Provided

    View the 3148B Log-Periodic Dipole Array charts below