Attenuator Materials, Attenuators and Dimensions for Microwaves- (I).

Microwave development has brought with it many related devices, one class of which is circuit elements having the property of attenuating or absorbing microwaves. Investigation of the microwave properties of a variety of solids led to the application of electrically in-homogeneous ceramic and plastic materials such as silicon carbide dispersed in porcelain, and graphite dispersed in phenol formaldehyde.