| 摘要 |
A microminiature electrical delay line utilizes an m-derived filter formed by depositing a film of permalloy 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 interconnected coils and a strip of permalloy or other high permeability metal is deposited over the top dielectric layer 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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