I am looking for a supplier for resistive card used in a Waveguide Bow Vane attenuator. I am not sure even what the material is called! All I know is that the resistance is measured in Ohms per square...
Basically I am trying to come up with a simple design for a variable attenuator, so any...
I need some help in ways of calculating the number and size of fins required to disperse heat generated by a load element inside a piece of wave guide.
The load element is silicon carbide absorbing 200W of power in copper or aluminium WR75 waveguide.
Any pointers would be very much appreciated
