Co-firing of low firing temperature dielectric materials with high bismuth garnet ferrites for miniaturized isolators and circulators

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United States of America Patent

PATENT NO 11936088
APP PUB NO 20230291085A1
SERIAL NO

18199598

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Abstract

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A method of forming a composite material for use as an isolator or circulator in a radiofrequency device comprises providing a low temperature fireable outer material, the low fireable outer material having a garnet or scheelite structure, inserting a high dielectric constant inner material having a dielectric constant above 30 within an aperture in the low temperature fireable outer material, and co-firing the lower temperature fireable outer material and the high dielectric constant inner material together at temperature between 650-900° C. to shrink the low temperature fireable outer material around an outer surface of the high dielectric constant inner material to form an integrated magnetic/dielectric assembly without the use of adhesive or glue.

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Patent Owner(s)

Patent OwnerAddress
SKYWORKS SOLUTIONS INCIRVINE CA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cruickshank, David Bowie Rockville, US 55 470
Firor, David Martin Thurmont, US 16 95
Hill, Michael David Emmitsburg, US 119 681
Jiang, John Jianzhong Leesburg, US 9 45
Polisetty, Srinivas Frederick, US 13 45
Shunkwiler, Jeffrey Alan Adamstown, US 15 80

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