Antenna Testing

Antenna Testing

Winegard currently maintains an extensive portfolio of antenna test and measurement capabilities to create a comprehensive testing facility that can test virtually any antenna design. Winegard testing ranges include:

  • NSI Compact Range
  • NSI Spherical Near-Field Range
  • NSI Planar Near-Field Range
  • Outdoor Far-Field Range
Winegard's state-of-the-art antenna test ranges provide measurement, analysis, and full verification of antenna performance covering 54 MHz to 40 GHz.

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NSI Compact Range:
Winegard's state-of-the-art NSI compact range antenna measurement system is used to test antennas up to 2 meters in diameter and at frequencies between 0.5 GHz to 40 GHz. It provides comprehensive and valuable information on the performance of the antenna under test (co- and cross-polarization patterns, gain, sidelobe structure, beam width, beam pointing, and axial ratio). The compact range generates a plane wave at a much shorter distance than in a far-field test range environment. This allows for indoor testing at any day in the year. The compact range is housed in a room which has RF absorber on the side walls and on the ceiling to minimize multipath. Winegard Company uses NSI antenna measurement software and a computer for data acquisition and processing. See below for a sample of radiation pattern measured on the compact range.

Capabilities of this range include:

  • Evaluation of antennas up to 2 meters in size at frequencies from 2 to 40 GHz
  • Produces pattern cuts up to 360 degrees
  • Can be used to characterize any type of antenna
  • Uses direct measurement with no mathematical transformation

NSI Spherical Near-Field Range:
Winegard's state-of-the-art NSI spherical near-field range collects data over a spherical surface surrounding the antenna under test.

Capabilities of this range include:

  • Measures directional and omnidirectional antennas up to 40 GHz and 2 meters in size
  • Produces 2D or 3D patterns
  • Can be used to characterize any type of antenna
  • Uses MARS post-processing software to correct for residual reflections

3D Plot of a Measured Antenna Pattern Obtained Using Winegard Spherical Near-Field Antenna Measurement Range:

NSI Planar Near-Field Range:
Winegard's state-of-the-art NSI vertical planar near-field antenna measurement system is used to test medium to high gain antennas (gain higher than 15 dBi). It provides comprehensive and valuable information on the performance of the antenna under test (co- and cross-polarization patterns, gain, sidelobe structure, beam width, beam pointing, axial ratio, etc.).

Capabilities of this range include:

  • Measures directional and omnidirectional antennas up to 40 GHz and 2 meters in size
  • Produces 2D or 3D patterns
  • Can be used to characterize any type of antenna
  • Uses MARS post-processing software to correct for residual reflections

Outdoor Far-Field Range:
Winegard's outdoor far-field antenna range measurement system is used to test antennas of different sizes and shapes at frequencies between DC to 3 GHz (AM/FM/VHF/UHF).

It provides comprehensive and valuable information on the performance of the antenna under test (co- and cross-polarization patterns, gain, front-to-back ratio, and beam width). 2D polar plots are generated for the AUT. See below for a sample of radiation pattern measured on the Winegard outdoor far-field antenna range.

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