Microminiature electrical delay line utilizing thin film...

Details Microminiature electrical delay line utilizing thin film... Microminiature electrical delay line utilizing thin film...

H - Electricity

03

H

333/33

H03H 7/30 (2006.01)

Patent

CA 1117193

1. ABSTRACT OF THE DISCLOSURE A microminiature electrical delay line utilizes an m-derived filter formed by depositing a film of per- malloy or other high permeability metal on a quartz or other dielectric substrate, then depositing a layer of quartz or other dielectric over the permalloy film, after which a plurality of microminiature thin film inductance coils are deposited on the dielectric layer and joined together electrically in series, a top layer of quartz or other dielectric then is deposited over the intercon- nected coils and a strip of permalloy or other high per- meability metal is deposited over the top dielectric lay- er to extend across the coils, a gap being provided in the strip of permalloy at the central axis of each coil.

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