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Measurement Probes and Feeds

Dual Polarized CATR Feed for Cross-Polarization Reduction

3300 MHz - 18000 MHz

A novel CATR feed concept to significantly improve the cross-polar performance of any uncompensated CATR systems, such as side/corner-fed single reflector systems.

Provides wideband dual-polarized conjugate field matching, effectively cancelling the Geometrical Optics (GO) cross-polar component induced by the offset reflector of any single reflector CATR configuration.

References:

  • CXR
Dual Polarized CATR Feed for Cross-Polarization Reduction

TECHNICAL PERFORMANCE

  • Dual linear polarization with high on-axis polarization purity and isolation
  • No nulls in the forward radiation pattern
  • Low back-scattering
  • Wideband, low dispersion

DESIGN

  • Wideband orthomode junction (OMJ) based on inverted quad-ridge circular waveguide with external feeding circuits
  • Axially corrugated circular aperture
  • Minimum waveguide cross-section for low backscattering

SURFACE TREATMENT

  • Surtec 650 according to MIL-C 5541E class 3

REPEATABILITY

  • Stiff and robust mechanical design
  • Precision machined
  • Highly reliable RF components

DELIVERED DOCUMENTS

  • Typical performance data (TYMEDA™)
  • Measured return loss data

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Related resources

See Compact Range Overview

Compact Range Overview

Product Catalogs

See Antenna Product Overview

Antenna Product Overview

Product Catalogs

See Step Inside a 3120 m3 Test Chamber

Step Inside a 3120 m3 Test Chamber

Videos

See Infographic - High performance probes and feeds

Infographic - High performance probes and feeds

Fast-Scan Learning

See Improving the Cross-Polar Discrimination of Compact Antenna Test Range using the CXR Feed

Improving the Cross-Polar Discrimination of Compact Antenna Test Range using the CXR Feed

Technical Papers

See Numerical Investigation of Cross Polar Reduction CATR Feed in Dual Linear Polarisation

Numerical Investigation of Cross Polar Reduction CATR Feed in Dual Linear Polarisation

Technical Papers

See Reduction of the Cross Polarization Component in the Quiet Zone of a Single Reflector CATR

Reduction of the Cross Polarization Component in the Quiet Zone of a Single Reflector CATR

Technical Papers

See Design and Verification of Cross-Polarization Compensation Feed for Single Reflector Compact Antenna Test Range over a Wide Bandwidth

Design and Verification of Cross-Polarization Compensation Feed for Single Reflector Compact Antenna Test Range over a Wide Bandwidth

Technical Papers

See Dual Polarized Wideband Feed with Cross-Polarization Reduction and Compensation Proprieties for Compact Antenna Test Ranges

Dual Polarized Wideband Feed with Cross-Polarization Reduction and Compensation Proprieties for Compact Antenna Test Ranges

Technical Papers

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