Compact range measurements

Compact range measurements

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This chapter discusses the various compact antenna test range (CATR) reflector measurements on comment on their main design issues.

Chapter Contents:

  • 4.1 Introduction
  • 4.2 Collimation of electromagnetic fields
  • 4.2.1 Reflector edge diffraction
  • 4.2.2 Feed spillover
  • 4.2.3 Lenses as collimators
  • 4.2.4 Hologram CATRs
  • 4.2.5 Reflector surface errors and panel gaps
  • 4.2.6 Time-gating and the absorber-less chamber
  • 4.3 Types of ranges and their design issues
  • 4.3.1 Single offset reflector CATR
  • 4.3.2 Dual cylindrical reflector CATR
  • 4.3.3 Dual shaped reflector CATR
  • 4.3.4 Tri-reflector CATR
  • 4.3.5 Hologram CATR
  • 4.3.6 Lens CATR
  • 4.4 Quiet zones and performance evaluation
  • 4.4.1 How does a CATR actually work?
  • 4.4.2 Measurement of the quiet zone by field probing
  • 4.4.3 Phase-less quiet zone scanning
  • 4.4.4 Quiet zone evaluation using RCS of a known target
  • 4.4.5 Improving measured CATR patterns
  • 4.4.6 Feed scanning for static AUT measurements
  • 4.5 Radiation pattern and power parameter measurement
  • 4.5.1 Radiation pattern measurement
  • 4.5.2 Power parameter measurement
  • 4.6 Radar cross-section measurements
  • 4.6.1 RCS measurement in a CATR
  • 4.6.2 Sources of RCS measurement error in a CATR
  • 4.6.3 RCS model towers
  • 4.6.4 Time-gating for RCS
  • 4.6.5 Target imaging
  • References

Inspec keywords: reflector antennas; antenna testing

Other keywords: CATR reflector measurements; compact antenna test range; compact range measurements

Subjects: Production facilities and engineering; Single antennas

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