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Features

    • Models 90 GHz to 500 GHz
    • Thru-Reflect-Line (TRL) Calibration
  • 3⁄4 λg or 5/4 λg lines
  • 3 Grades
    • Bronze Grade (Series 704)
    • Sliver Grade (Series 721)
    • Gold Grade (Series 741)
  • National Physical Laboratory Technology Applied

At millimeter wave frequencies the quarter wavelength lines required to carry out a TRL calibration become so thin as to become fragile and prone to damage and distortion.

By using multiple 1⁄4 λg lines the need to use very thin, fragile sections is negated, ensuring a more reliable and repeatable calibration.

Flann millimeter wave calibration kits have been designed in close co-operation with NPL and incorporate 3⁄4 λg or 5⁄4 λg sections. Flann has been awarded a licence by NPL to manufacture devices using this technology.

Further information on this calibration technique can be found from:

21st International Symposium on Space Terahertz Technology, Oxford, 23-25 March 2010.

 

Ordering
Please specify the following:

 

Standard Kit Contents

2 x Fixed Terminations
2 x Flush Shorts
2 x Waveguide Sections
2 x 3/
4λg or 3 x 5/
4λg Lines
Set of fl ange bolts
Precision fl ange dowels
Torque driver
USB data stick
Hardwood case
Handbook

 

Microwave Specifications

      
Waveguide DesignationFrequency
(GHz)
Termination
VSWR
(max)
WMWGRWR
2032281200890- 1401.04
16512914006110 - 1701.05
12953018005140 - 2201.06
10923122004170 - 2601.08
8643226003220 - 3301.1
710--2.8*260 - 4001.12
570--2.2*330 - 5001.15

* Designation not formally standardised

 

Dimensional Specifications

              
WM*Waveguide Dimensions (microns)Dimensional Tolerances from Nominal (microns)Flush Short Flatness better than (microns)
Waveguide ApertureLine LengthWaveguide Section Overall Length
BronzeSilverGoldBronzeSilverGoldBronzeSilverGoldBronzeSilverGold
20322032 x 101612841894.5201051263
16511651 x 8261063157.54
12951295 x 648852.51263
10921092 x 5466.54.52.59.552.5
864864 x 43253.52 .073.52
710710 x 355431.56.531.5
570570 x 2853.52.51.252.51.5

WM* – IEEE 1785.1:2012 Standard for Rectangular Metallic Waveguides and Their Interfaces for Frequencies of 110 GHz and Above.

 

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