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Electromagnetic Isolation (EMI) Structure-Property Relationships in Low Temperature Cofired Ceramic (LTCC)
Keywords: LTCC, EMI Isolation, RF
Electromagnetic Isolation (EMI) Structure-Property Relationships in Low Temperature Cofired Ceramic (LTCC) Jack Harder1, Daniel Krueger1 Electromagnetic interference (EMI) isolation is of interest to many designers of transmitters and receivers for radio frequency (RF) applications. Faraday cage structures can be formed in low temperature cofired ceramic (LTCC) in various configurations using green machining. Previous work has evaluated and discussed the formation and stress/temperature effects of these full tape thickness features (FTTF) formed using green machining. The structures will have differing EMI isolation effects when a buried ground plane is intersected by a vertical member versus structures where the vertical member terminates at the surface of the ground plane. The shielding or EMI isolation performance of the two configurations as well as the structures themselves are described and compared. 1The Kansas City Plant is operated and managed by Honeywell Federal Manufacturing & Technologies for the United States Department of Energy under contract No. DE-NA0000622.
Jack Harder, Electrical Engineer
Honeywell FM&T
Kansas City, MO

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