Electricity: conductors and insulators – Anti-inductive structures – Conductor transposition
Patent
1989-05-18
1991-09-03
Picard, Leo P.
Electricity: conductors and insulators
Anti-inductive structures
Conductor transposition
219 1055D, H05K 900
Patent
active
050456385
ABSTRACT:
This invention relates to an apparatus for shielding electromagnetic radiation which includes a casing made primarily of electromagnetic shielding material and an electromagnetic wave suppressor member having high permeability and/or permittivity. A method for using this apparatus also is described. The suppressor member has a high dielectric loss and/or high magnetic loss at a location close to the place in the casing where electromagnetic waves are less shielded, thereby reducing leakage of undesirable electromagnetic waves from the casing.
REFERENCES:
patent: 4046983 (1977-09-01), Ishino et al.
patent: 4539433 (1985-09-01), Ishino et al.
patent: 4699743 (1987-10-01), Nakamura et al.
patent: 4814546 (1989-03-01), Whitney et al.
Kitahara Naoto
Koshimura Masami
Ono Mikiya
Wada Hideaki
Ledynh Bot L.
Mitsubishi Mining & Cement Co. Ltd.
Picard Leo P.
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