Accession Number : ADD009464

Title :   Frequency Selective Side Absorber for a Meander Line.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : McDowell,Hunter L

Report Date : 16 May 1982

Pagination or Media Count : 28

Abstract : A meander line slow wave structure mounted on ceramic bars for a microwave device such as an injected beam crossed-field amplifier includes frequency selective atttenuator means which will preferentially attenuate waves at frequencies near and within the stopband of the slow wave structure by the placement of side absorber bars of attenuating material adjacent to the outer side surfaces of a plurality of meander line finger segments. The frequency selective absorber material, in its preferred form, comprises a beryllia and silicon carbide ceramic composition which is additionally adapted to accommodate metallic absorber top plates, nichrome films, and slotted side ring configurations. (Author)

Descriptors :   *Patent applications, *Absorbers(Materials), *Microwave equipment, Slow wave circuits, Surface properties, Structures, Beryllium, Silicon carbides, Ceramic materials, Electrical resistance, Attenuators, Frequency

Subject Categories : Miscellaneous Materials
      Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE