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Precision Load

26 series
overview
  • The 26 series Precision Load are fitted with “precision flanges”
  • Fully compatible with standard flanges while maintaining accuracy and repeatability
  • The precision loads are designed to provide a very low VSWR footprint over the desired waveguide frequency range.
  • All Precision Load components are RoHS compliant.

The 26 series are Precision Loads are banded waveguide components used for waveguide calibrations. Waveguide calibrations require an alternative calibration than a coaxial SOLT (Short-open-load-thru). Waveguide calibrations that use Precision Load include SSLT (Short-short-load-thru) and LRL/LRM (Line-Reflect-Line/Match).

Specifications

 Model

 Description*

VSWR (max)

  VSWR at center frequency

 Designation

 Cutoff frequency (GHz)

 26UA28-R

 Precision Load, US, 26.5 GHz – 40 GHz

1.02

1.016

WR28

21.1

 26UA42-R

 Precision Load, US, 17 GHz – 26.5 GHz

1.03

1.02

WR42

14.1

 26UA62-R

 Precision Load, US, 12.4 GHz – 18 GHz

1.02

1.016

WR62

9.49

 26UA90-R

 Precision Load, US, 8.2 GHz – 12.4 GHz

1.02

1.016

WR90

6.56

 26UA112-R

 Precision Load, US, 7.05 GHz – 10 GHz

1.02

1.016

WR112

5.26

 26UA137-R

 Precision Load, US, 5.85 GHz – 8.2 GHz

1.02

1.016

WR137

4.301

 26UA187-R

 Precision Load, US, 3.95 GHz – 5.85 GHz

1.02

1.016

WR187

3.152

 26UM40-R

 Precision Load, Metric, 3.3 GHz – 4.9 GHz

1.02

1.016

WR229

2.577

 26UM48-R

 Precision Load, Metric, 3.95 GHz – 5.85 GHz

1.02

1.016

WR187

3.152

 26UM70-R

 Precision Load, Metric, 5.85 GHz – 8.2 GHz

1.02

1.016

WR137

4.301

 26UM84-R

 Precision Load, Metric, 7.05 GHz – 10 GHz

1.02

1.016

WR112

5.26

 26UM100-R

 Precision Load, Metric, 8.2 GHz – 12.4 GHz

1.02

1.016

WR90

6.56

 26UM120-R

 Precision Load, Metric, 10 GHz – 15 GHz

1.02

1.016

WR75

7.87

 26UM140-R

 Precision Load, Metric, 12.4 GHz – 18 GHz

1.02

1.016

WR62

9.49

 26UM220-R

 Precision Load, Metric, 17 GHz – 26.5 GHz

1.03

1.016

WR42

14.1

 26UM320-R

 Precision Load, Metric, 26.5 GHz – 40 GHz

1.02

1.02

WR28

21.1

* Note: US and metric are respect to pitch size for fastening screws

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