Inductor devices – Core
Patent
1998-06-10
2000-09-05
Donovan, Lincoln
Inductor devices
Core
336212, H01F 2728
Patent
active
061149403
ABSTRACT:
There is disclosed a BALUN transformer core material which has no magnetic permeability, contains a non-magnetic material and is not influenced by the frequency property of the magnetic permeability even in a high-frequency band. A BALUN transformer core which is obtained by pressing and sintering the BALUN transformer core material has no magnetic permeability and has a high specific resistance. A BALUN transformer which is obtained by applying a winding to the BALUN transformer core is a high-property BALUN transformer which can be operated in a high-frequency band of 600 MHz or more.
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patent: 4543208 (1985-09-01), Horie et al.
patent: 4689546 (1987-08-01), Stephens et al.
patent: 4785273 (1988-11-01), Doty
patent: 5350628 (1994-09-01), Kugimiya et al.
patent: 5838215 (1998-11-01), Gu et al.
patent: 5846448 (1998-12-01), Yasuhara et al.
Chemistry of the Elements, Greenwood and Earnshaw, pp. 1254-1256 (No Date).
Ito Ko
Kakinuma Sei
Onizuka Masahiro
Sato Kouki
Donovan Lincoln
TDK Corporation
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