Variable Calibrated
Rotary Vane
Attenuators
2.60
to 50.0 GHz
0 to 60 dB
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2.60
to 50.0 GHz |
Variable Precision Calibrated Rotary Vane Attenuators
These
direct reading precision units provide varying attenuation values that depend on
mathematical law and are independent of frequency. The effects of varying
temperature and humidity conditions are almost negligible and therefore the
stability of the attenuation setting is assured for full frequency range
operation.
A specially designed cylindrical waveguide section contains matched
precision metallized attenuating elements which are rotated to exactly angular
positions. Attenuation readout is provided through use of a precision
stainless steel tape mechanism which presents an overall scale length greater
than thirty inches.
The size of these units have been minimized by incorporating newly
developed waveguide cylindrical sections and greatly improved transition
techniques. Because of the reduced size and short length, as well as the
inherent rugged construction, these units are readily adaptable for special
systems applications. Finish is instrument gray enamel.
General Specifications:
Attenuation Range . . . . . . . . . . .
. . 0 to 60.0 dB
VSWR . . . . . . . . . . .... . . . . . . . . . .1.15 maximum
Accuracy:
0 to 50 dB . . . . . . . . . . . +/-2% of dB reading or +/-0.1 dB, whichever is
greater
50 to 60 dB . . . . . . . . . . .Usable as reference only
Insertion Loss. . . . . . . . . . . . . . . .1.0 dB maximum (0.5 dB
typical)
Important ordering information: Add suffix "R" for panel mounting.
| WG Size |
Frequency Range, GHz |
Equivalent Flange Type |
WG Mt. |
Avg.
Power Capability Watts |
Model No. |
Model No. |
| WR-284 | 2.60 to 3.95 | UG-584/U AL Cover | AL | 15 | 222 | - |
| WR-229 | 3.30 to 4.90 | CMR-229 AL Flat | AL | 15 | 2922 | 2922-R |
| WR-187 | 3.95 to 5.85 | UG-407/U AL Cover | AL | 15 | 322 | 322-R |
| WR-159 | 4.90 to 7.05 | CMR-159 AL Flat | AL | 15 | 5922 | 5922-R |
| WR-137 | 5.85 to 8.20 | UG-344/U BR Cover | BR | 10 | 422 | 422-R |
| WR-112 | 7.05 to 10.0 | UG-138/U AL Cover | AL | 10 | 522 | 522-R |
| WR-102 | 7.00 to 11.0 | WR-102 AL Cover | AL | 10 | 0222 | 0222-R |
| WR-90 | 8.2 to 12.4 | UG-135/U AL Cover | AL | 10 | 622 | 622-R |
| WR-75 | 10.0 to 15.0 | WR75 AL Cover | AL | 10 | 7522 | 7522-R |
| WR-62 | 12.4 to 18.0 | UG-1665/U AL Cover | AL | 5 | 722 | 722-R |
| WR-51 | 15.0 to 22.0 | WR-51 AL Cover | AL | 2 | 5122 | 5122-R |
| WR-42 | 18.0 to 26.5 | UG-597/U AL Cover | AL | 2 | 822 | 822-R |
| WR-28 | 26.5 to 40.0 | UG-599/U-AL Cover | AL | 2 | 1022 | 1022-R |
| WR-22 | 33.0 to 50.0 | WR-22 BR Rd. Cover | BR | 1/2 | 1122 | 1122-R |
| In. A |
In. B |
In. C |
In. D |
In. E |
In. F |
In. G |
In. H |
In. J |
In. K |
Model No. |
Model No. |
| 25.50 | 7.94 | 8.42 | 7.50 | 4.13 | 3.00 | - | - | - | - | 222 | - |
| 27.50 | 7.94 | 8.42 | 7.50 | 4.13 | 3.00 | .63 | 6.25 | 1.38 | 5.94 | 2922 | 2922-R |
| 20.50 | 7.22 | 7.00 | 6.50 | 3.22 | 2.75 | .63 | 5.25 | 1.38 | 3.38 | 322 | 322-R |
| 18.00 | 7.22 | 7.00 | 6.50 | 3.22 | 2.75 | .63 | 5.25 | 1.38 | 3.38 | 5922 | 5922-R |
| 14.88 | 7.22 | 7.00 | 6.50 | 3.22 | 2.75 | .63 | 5.25 | 1.38 | 3.38 | 422 | 422-R |
| 12.00 | 7.22 | 7.00 | 6.50 | 3.22 | 2.75 | .63 | 5.25 | 1.38 | 3.38 | 522 | 522-R |
| 16.94 | 7.22 | 7.00 | 6.50 | 3.22 | 2.75 | .63 | 5.25 | 1.38 | 3.38 | 0222 | 0222-R |
| 11.25 | 6.13 | 5.70 | 6.00 | 2.33 | 2.50 | .63 | 4.75 | 1.27 | 2.38 | 622 | 622-R |
| 9.50 | 6.13 | 5.70 | 6.00 | 2.33 | 2.50 | .63 | 4.75 | 1.27 | 2.38 | 7522 | 7522-R |
| 10.00 | 6.13 | 5.56 | 6.00 | 2.33 | 2.50 | .63 | 4.75 | 1.27 | 2.38 | 722 | 722-R |
| 8.50 | 5.87 | 5.51 | 4.50 | 2.34 | 2.38 | .56 | 3.38 | .77 | 2.88 | 5122 | 5122-R |
| 7.40 | 5.87 | 5.51 | 4.50 | 2.34 | 2.38 | .56 | 3.38 | .77 | 2.88 | 822 | 822-R |
| 7.00 | 5.87 | 5.51 | 4.50 | 2.34 | 2.38 | .56 | 3.38 | .77 | 2.88 | 1022 | 1022-R |
| 6.00 | 5.87 | 5.51 | 4.50 | 2.34 | 2.38 | .56 | 3.38 | .77 | 2.88 | 1122 | 1122-R |
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Please call if you need any further assistance or information. |
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10 |
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P.O. BOX 718, West Caldwell, NJ (973) 808-9113 Fax (973) 808-1524 |
P | N | T |