Phase recovery in antenna measurements

Phase recovery in antenna measurements

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In this chapter focuses on two specific techniques, both derived from optics. In the first technique, an interferometry between the unknown radiated field and a known radiated field is used. As it will be illustrated, if certain conditions are met, then it is possible to directly retrieve the radiated field with a negligible error by means of simple operations in the spatial spectral domain, also known as k-space.

Chapter Contents:

  • 6.1 Introduction
  • 6.1.1 Main phase recovery techniques
  • 6.1.2 Interferometric techniques
  • 6.1.3 Iterative techniques
  • 6.2 Indirect off-axis holography
  • 6.2.1 Method
  • 6.2.2 Improved schemes
  • Modified hologram
  • Synthesized reference-wave indirect holography
  • 6.2.3 Broadband indirect off-axis holography
  • Method
  • Application example
  • 6.2.4 Error analysis
  • 6.3 Iterative phase retrieval techniques
  • 6.3.1 Fundamentals
  • 6.3.2 Phaseless sources reconstruction method
  • Description of the method
  • Application example
  • 6.4 Conclusions
  • References

Inspec keywords: antenna radiation patterns; antenna theory

Other keywords: antenna measurements; spatial spectral domain; negligible error; phase recovery; unknown radiated field

Subjects: Single antennas; Antenna theory

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