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Area of Science:

  • Electrical Engineering
  • Antenna Theory and Measurement

Background:

  • Mass production of linear antenna arrays requires efficient and fast testing methods.
  • Traditional antenna measurements can be time-consuming, hindering high-volume manufacturing.

Purpose of the Study:

  • To introduce a novel near-field measurement system concept for rapid testing of linear antenna arrays.
  • To enable fast computation of radiation patterns, directivity, gain, and feeding coefficients for mass-produced antennas.

Main Methods:

  • A linear multi-probe array measures the near-field of the antenna under test.
  • Single-cut transformation techniques are employed for data postprocessing.
  • A 'Gold Antenna' is fully characterized to compensate for limited 3D data.

Main Results:

  • An X-band 16-probe demonstrator was successfully implemented and tested.
  • The system computes key antenna parameters in seconds.
  • Measurements show comparable results to traditional anechoic chamber methods.

Conclusions:

  • The proposed near-field measurement system offers a fast and reliable solution for mass production testing of linear arrays.
  • This concept has the potential to significantly reduce testing time and costs in antenna manufacturing.