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 flange bolts
Precision flange dowels
Torque driver
USB data stick
Hardwood case
Handbook
Microwave Specifications
Waveguide Designation | Frequency (GHz) | Termination VSWR (max) |
|||
WM | WG | R | WR | ||
2032 | 28 | 1200 | 8 | 90- 140 | 1.04 |
1651 | 29 | 1400 | 6 | 110 - 170 | 1.05 |
1295 | 30 | 1800 | 5 | 140 - 220 | 1.06 |
1092 | 31 | 2200 | 4 | 170 - 260 | 1.08 |
864 | 32 | 2600 | 3 | 220 - 330 | 1.1 |
710 | - | - | 2.8* | 260 - 400 | 1.12 |
570 | - | - | 2.2* | 330 - 500 | 1.15 |
* Designation not formally standardised
Dimensional Specifications
WG | WM* | Waveguide Dimensions (microns) | Dimensional Tolerances from Nominal (microns) | Flush Short Flatness better than (microns) | ||||||||||
Waveguide Aperture | Line Length | Waveguide Section Overall Length | ||||||||||||
Bronze | Silver | Gold | Bronze | Silver | Gold | Bronze | Silver | Gold | Bronze | Silver | Gold | |||
28 | 2032 | 2032 x 1016 | 12 | 8 | 4 | 18 | 9 | 4.5 | ||||||
29 | 1651 | 1651 x 826 | 10 | 6 | 3 | 15 | 7.5 | 4 | ||||||
30 | 1295 | 1295 x 648 | 8 | 5 | 2.5 | 12 | 6 | 3 | ||||||
31 | 1092 | 1092 x 546 | 6.5 | 4.5 | 2.5 | 9.5 | 5 | 2.5 | 20 | 10 | 5 | 12 | 6 | 3 |
32 | 864 | 864 x 432 | 5 | 3.5 | 2 .0 | 7 | 3.5 | 2 | ||||||
- | 710 | 710 x 355 | 4 | 3 | 1.5 | 6.5 | 3 | 1.5 | ||||||
- | 570 | 570 x 285 | 3.5 | 2.5 | 1.2 | 5 | 2.5 | 1.5 |
WM* – IEEE 1785.1:2012 Standard for Rectangular Metallic Waveguides and Their Interfaces for Frequencies of 110 GHz and Above.
WG | WM* | Line | Nominal Length (mm ± 0.01) | Line Changeover Frequency (GHz) | Measured Length (Microns ±) |
28 | 2032 | 1 | 3.39 | 108 | |
2 | 2.31 | ||||
29 | 1651 | 1 | 2.81 | 131 | |
2 | 1.91 | ||||
30 | 1295 | 1 | 2.22 | 168 | |
2 | 1.47 | ||||
31 | 1092 | 1 | 1.74 | 203 | |
2 | 1.24 | ||||
32 | 864 | 1 | 1.29 | 260 | |
2 | 1.00 | ||||
- | 710 | 1 | 2.10 | 291 | |
2 | 1.61 | 334 | |||
3 | 1.26 | ||||
- | 570 | 1 | 1.74 | 362 | |
2 | 1.33 | 416 | |||
3 | 1.02 |