The fixed attenuators, Series 081, are low VSWR devices suitable for operating over the full waveguide band.
The absolute attenuation is within ± 10% of nominal value.
Standard models are available in a range of attenuation values from 3 dB to 30 dB. Units with attenuation values of 40 dB and 50 dB are available to special order.
| Key Features |
| Full Waveguide Band |
| Low Frequency Sensitivity |
| Specifications |
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Series 081
Fixed Attenuators
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| Model | Frequency
Range (GHz) | Waveguide (WG)
| Waveguide (R) | Waveguide (WR) | VSWR (better than) Models
3 to 25 dB | VSWR (better than) Models
>30 dB | Mean
Power (W) | Flange to Flange
length (mm) |
| 12081 | 3.94 - 5.99 | 15 | 48 | 187 | 1.1 | 1.2 | 1 | 229 |
| 14081 | 5.38 - 8.18 | 14 | 70 | 137 | 1.1 | 1.2 | 0.5 | 280 |
| 15081 | 6.58 - 10.0 | 15 | 84 | 112 | 1.1 | 1.2 | 0.5 | 180 |
| 16081 | 8.20 - 12.5 | 16 | 100 | 90 | 1.1 | 1.2 | 0.5 | 130 |
| 17081 | 9.84 - 15.0 | 17 | 120 | 75 | 1.1 | 1.2 | 0.5 | 120 |
| 18081 | 11.9 - 18.0 | 18 | 140 | 62 | 1.1 | 1.2 | 0.5 | 120 |
| 19081 | 14.5 - 22.0 | 19 | 180 | 51 | 1.1 | 12 | 0.4 | 110 |
| 20081 | 17.6 - 26.7 | 20 | 220 | 42 | 1.1 | 1.2 | 0.3 | 76 |
| 21081 | 21.7 - 33.0 | 21 | 260 | 34 | 1.1 | 1.2 | 0.3 | 76 |
| 22081 | 26.4 - 40.1 | 22 | 320 | 28 | 1.1 | 1.2 | 0.3 | 70 |
| 23081 | 33.0 - 50.1 | 23 | 400 | 22 | 1.1 | 1.2 | 0.25 | 70 |
| 24081 | 39.3 - 59.7 | 24 | 500 | 19 | 1.1 | 1.2 | 0.25 | 70 |
| 25081 | 49.9 - 75.8 | 25 | 620 | 15 | 1.1 | 1.2 | 0.2 | 60 |
| 26081 | 60.5 - 92.0 | 26 | 740 | 12 | 1.1 | 1.2 | 0.2 | 50 |
| 27081 | 73.8 - 112 | 27 | 900 | 10 | 1.1 | 1.2 | 0.15 | 50 |
| 28081 | 92.3 - 140 | 28 | 1200 | 8 | 1.1 | 1.2 | 0.1 | 50 |
| 29081 | 114 - 173 | 29 | 1400 | 6 | 1.1 | 1.2 | 0.1 | 40 |
| 30081 | 145 - 220 | 30 | 1800 | 5 | 1.1 | 1.2 | 0.5 | 40 |
| 31081 | 172 - 261 | 31 | 2200 | 4 | 1.1 | 1.2 | 0.5 | 40 |
| 32081 | 217 - 330 | 32 | 2600 | 3 | 1.1 | 1.2 | 0.5 | 50 |
| Standard Attenuation Values | Suffix |
| 3 dB | 03 |
| 6 dB | 06 |
| 10 dB | 10 |
| 20 dB | 20 |
| 30 dB | 30 |
