Antenna Testing Solutions

The payload of a low Earth orbit (LEO) satellite consists of the transponder subsystem and the antenna subsystem. The antenna subsystem includes both the receiving and transmitting antennas. Reliable and comprehensive testing is essential to ensure the operational performance of the satellite antenna subsystem. Moreover, the testing of the transceiver system in LEO satellites needs to be conducted over-the-air (OTA).

Far Field Testing

Coverage of the Solution:

  • Product Feeding Mechanism
  • OTA Active Testing

Main Measurement Parameters:

  • Gain
  • Side Lobe Level
  • Directivity Coefficient
  • Front-to-Back Ratio
  • Beamwidth
  • Radiation Pattern (Antenna Diagram)
  • Cross-Polarization
  • Antenna Efficiency
  • TRP (Total Radiated Power), TIS (Total Isotropic Sensitivity), ERIP (Effective Radiated Isotropic Power), EIS (Effective Isotropic Sensitivity)

Supported Frequency Range:

  • 300 MHz - 40 GHz

Maximum Size:

  • 1.2 meters
Near Field Testing

Type:

  • Planar Near-Field
  • Optional Cylindrical Near-Field

Main Measurement Parameters:

  • Gain and Directivity Coefficient
  • Antenna Efficiency
  • Radiation Pattern
  • 3D Radiation Pattern (within the scanable angle range)
  • Beamwidth
  • Cross-Polarization
  • Side Lobe Level

System Dynamic Range:

  • 80 dB, depending on frequency and antenna gain

Motion Range:

  • X-Axis: up to 20 meters
  • Y-Axis: up to 20 meters
  • Z-Axis: up to 3 meters
  • Polarization Rotation: 360 degrees
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