Arrangement of thin film cores for planar coil inductor

Journal Article · Mon Mar 01 00:00:00 EST 1993 · IEEE Translation Journal on Magnetics in Japan (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/TJMJ.1993.4565599· OSTI ID:5826579

Matsuki, H; Fujii, N ^[1]; Shirakawa, K; Toriu, J; Murakami, K

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1. Tohoku Univ., Sendai (Japan)

Miniaturized thin film inductors with various shaped magnetic cores are described. The dimensions of these inductors are about 2 mm x 2 mm. Since they are used at frequencies above 100 MHz, the effective utilization of the magnetic core must be considered. The authors measured the inductance of inductors with magnetic cores of various shapes, and investigated the flux density distribution. The inductors were based on from 100 to 240 core pieces, each piece with from one to three coil turns. The conductor of these inductors was confined to a single plane to prevent connection defects. According to measured results, the inductor with the highest inductance per unit are employed two-turn magnetic core pieces. There was no significant difference in the inductance of closed-loop and open-loop core constructions.

• OSTI ID: 5826579
• Journal Information: IEEE Translation Journal on Magnetics in Japan (Institute of Electrical and Electronics Engineers); (United States), Vol. 8:3; ISSN 0882-4959
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
SOLENOIDS
MINIATURIZATION
DESIGN
ELECTRONIC EQUIPMENT
INDUCTANCE
MAGNETS
THIN FILMS
ELECTRIC COILS
ELECTRICAL EQUIPMENT
ELECTRICAL PROPERTIES
EQUIPMENT
FILMS
PHYSICAL PROPERTIES
426000* - Engineering- Components
Electron Devices & Circuits- (1990-)