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1.70 to 22.0 GHz
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Variable Precision Waveguide Attenuators
These precision variable attenuators with a range of 0 to
40 dB at a maximum VSWR of 1.15 are designed to provide an extremely accurate, completely shielded attenuating device,
having excellent stability regardless of age or wide variations in humidity and temperature.* They are widely used
for padding purposes, for precisely controlling R.F. flow as a power setting device in waveguide networks.
These instruments incorporate precision metallized attenuating elements of the parallel vane type, which are
bilaterally matched to provide low VSWR values over the frequency range of the unit. Attenuation is controlled by
means of a smooth operating mechanism which is free of backlash or play. A counter-clockwise rotation of the
control knob increases attenuation. Alternate flanges and materials are available. See flange section.
Finish is instrument gray enamel.
| WG
Size |
Frequency
Range GHz |
Equivalent
Flange Type |
WG
Mat. |
Inches
A |
Power
Watts |
Model
No. |
| WR-430 | 1.70 to 2.60 | CPR-430 Flat | AL | 26.0 | 10 | 4310* |
| WR-284 | 2.60 to 3.95 | UG-53/U Cover | BR | 17.0 | 10 | 210 |
| WR-229 | 3.30 to 4.90 | CMR-229 Style | BR | 15.5 | 10 | 2910 |
| WR-187 | 3.95 to 5.85 | UG-149A/U Cover | BR | 11.5 | 5 | 310 |
| WR-159 | 4.90 to 7.05 | CMR-159 Style | BR | 11.5 | 5 | 5910 |
| WR-137 | 5.85 to 8.20 | UG-344/U Cover | BR | 9.00 | 4 | 410 |
| WR-112 | 7.05 to 10.0 | UG-51/U Cover | BR | 7.50 | 2 | 510 |
| WR-102 | 7.00 to 11.0 | UG-1493/U Cover | BR | 7.50 | 3 | 0210 |
| WR-90 | 8.20 to 12.4 | UG-39/U Cover | BR | 6.50 | 2 | 610 |
| WR-75 | 10.0 to 15.0 | WR-75 Cover | BR | 6.50 | 2 | 7510 |
| WR-62 | 12.4 to 18.0 | UG-419/U Cover | BR | 4.00 | 1 | 710 |
| WR-51 | 15.0 to 22.0 | WR-51 Cover | BR | 4.00 | 3/4 | 5110 |
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* 4310: 25 dB Maximum attenuation 1.25:1 maximum VSWR |
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Please call if you need any further assistance or information. |
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5 |
P.O. BOX 718, West Caldwell, NJ Phone (973) 808-9113 - Fax (973) 808-0415 |
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