Direct Reading Attenuator

Direct Reading Attenuator


Direct Reading Attenuator
  • High resolution
  • high accuracy

DAXE Millimeter-Wave Direct Reading Attenuator is a measurement instrument for signal level setting or loss measurements in waveguide networks. It also can be used for calibration of other attenuation measurement instruments. Direct Reading Attenuators have rotary-vane design. The value of attenuation is determined by rotation angle of resistive film with respect to the waveguide channel. Attenuation value does not depend on of frequency.
The Attenuators are provided in waveguide bands between 18 GHz and 225 GHz.

ModelFrequency range, GHzWaveguide typeWaveguide flangeAttenuation accuracyInsertion loss, dBVSWR
DA-12E18 - 26.5WR - 42UG 595/U

±0.2dB for A=0÷10dB;

±0.02·A for A=10÷50dB;

±[1+0.08·(A-50)]dB for A=50÷60dB, where

A is attenuation in dB.

0.5 max1.15 max
DA-08E26.5 - 40WR - 28UG 599/U0.6 max1.15 max
DA-06E33 - 50WR - 22UG 383/U0.8 max1.15 max
DA-04E50 - 75WR - 15UG 385/U1.0 max1.15 max
DA-035E60 - 90WR - 12UG 387/UM1.5 max1.2 max
DA-03E75 - 110WR - 10UG 387/UM1.5 max1.2 max
DA-025E90 - 140WR - 08UG 387/UM2.0 max1.2 max
DA-02E110 - 170WR - 06UG 387/UM2.0 max1.2 max
DA-015E170 - 225WR - 05UG 387/UM

±0.2dB for A=0÷10dB;

±0.02·A for A=10÷30dB;

3.0 max1.3 max

Max input power: 0.1 W (CW, avg.)

Jason Lin,
2018年5月28日 晚上11:21