flap attenuator

Definition

Electronics

  • A waveguide attenuator in which a sheet or plate of dissipative material is placed through a non-radiating slot. As the sheet or plate is moved into and out of the slot, a variable amount of loss is introduced. Also called vane attenuator, rotary-vane attenuator, or guillotine attenuator.
http://www.dictionarycentral.com/definition/flap-attenuator.html