020 Series

The Flann Series 020 of Millimetric Calibrated Variable attenuators has been updated to provide an improved attenuation flatness across the whole waveguide band whilst keeping the low VSWR as expected. Additional to our manual operation micrometre, we can also now offer a programmable option.

The micrometer drive is free from backlash, permitting attenuation calibration to a high accuracy. The micrometer is fitted with a locking device which enables the adjusting mechanism to be set and locked at any setting. The attenuating elements are constructed from an extremely stable coated glass.

A calibration is provided at the centre band frequency unless otherwise specified. Calibration at additional frequencies can be provided upon request.

*Not possible on all waveguide sizes, enquire for further details.

*WG29 – WM570 calibrated attenuation
range 0 – 25 dB

On models 08020 to 21020 the vane is introduced transversely across the waveguide.

Models 22020 – 570020 have a vane introduced through a slot in the centre of the broad wall.

A calibration is provided at the centre band frequency unless otherwise specified.
Calibration at additional frequencies can be provided at extra cost.

  • Models from 1.1 GHz to 500 GHz
  • Up to 50dB Calibrated attenuation range
  • Low VSWR
  • Excellent attenuation flatness +/-10%* across whole waveguide band
  • Programmable option available