Title :
Magnetic-multi-turn planar coil inductor
Author :
Matsuki, H. ; Fujii, N. ; Shirakawa, K. ; Toriu, J. ; Murakami, K.
Author_Institution :
Dept. of Electr. Eng., Tohoku Univ., Sendai, Japan
fDate :
11/1/1991 12:00:00 AM
Abstract :
A miniaturized thin film inductor whose magnetic core is wound around the conductor is proposed. The dimensions of the inductors are 2.3 mm×2.3 mm, and these inductors are used at a frequency range above 100 MHz. The conductor is patterned on a plane, keeping contact resistance low. The magnetic core is designed for keeping a closed magnetic path even in the case of disconnection on the magnetic core. For diminishing the copper loss, a pattern for inductors which shortens the length of the conductor is discussed
Keywords :
inductors; magnetic cores; magnetic thin film devices; 100 to 550 MHz; Q frequency characteristics; closed magnetic path; contact resistance; copper loss; magnetic core; magnetic multi turn planar coil inductor; plane patterning; thin film inductor; Amorphous magnetic materials; Coils; Conductive films; Conductors; Frequency; Insulation; Magnetic cores; Magnetic films; Thin film inductors; Wounds;
Journal_Title :
Magnetics, IEEE Transactions on
