Direct Reading Attenuator
- High resolution
- High accuracy
DAXE Millimeter-Wave Direct Reading Attenuator is a measurement instrument for attenuation measurements
in waveguide networks as well as for signal level setting. It also can be used for calibration of other attenuation measurement instruments. Direct Reading Attenuators
have rotary-vane design. The attenuation is a function of the rotation angle of the absorbing element with respect to the electric field direction.
Attenuation value does not depend on frequency.
The Attenuators are provided in waveguide bands between 18 GHz and 220 GHz.
| Model | Frequency range, GHz | Waveguide type | Waveguide flange | Attenuation accuracy | Insertion loss, dB | VSWR |
| DA-12E | 18 - 26.5 | WR - 42 | UG 595/U | ±0.2dB for A=0÷10dB; |
0.5 max | 1.2 |
| DA-08E | 26.5 - 40 | WR - 28 | UG 599/U | 0.6 max | 1.2 | |
| DA-06E | 33 - 50 | WR - 22 | UG 383/U | 0.8 max | 1.2 |
|
| DA-04E | 50 - 75 | WR - 15 | UG 385/U | 1.0 | 1.2 | |
| DA-035E | 60 - 90 | WR - 12 | UG 387/U | 1.2 | 1.2 | |
| DA-03E | 75 - 110 | WR - 10 | UG 387/UM | 1.5 | 1.2 | |
| DA-025E | 90 - 140 | WR - 08 | UG 387/UM | 2.0 | 1.2 | |
| DA-02E | 110 - 170 | WR - 6.5 | UG 387/UM | 3.0(110-114GHz) 2.5(114-120GHz) 2.0(120-170GHz) |
1.3(110-114GHz) 1.2(114-170GHz) |
|
| DA-015E | 170 - 220 | WR - 5.1 | UG 387/UM | ±0.3dB for A=0÷10dB; |
3.0 | 1.3 |
|
Attenuation range 0 ÷ 60 dB for WR-42, WR-28, WR-22, WR-15, WR-12, WR-10, WR-08, WR-6.5 models Attenuation range 0 ÷ 30-40 dB for WR-5.1 model |
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| Max input power (CW, avg): 20-350 mW, depending on the frequency range | ||||||