TY - JOUR
T1 - Planar Coil Inductor with Closed Magnetic Circuit
AU - Matsuki, H.
AU - Fujii, N.
AU - Shirakawa, K.
AU - Toriu, J.
AU - Murakami, K.
PY - 1992/6
Y1 - 1992/6
N2 - A break in the electrical or the magnetic path in a conductor or magnetic core is a serious problem for the fabrication of inductors. A planar-coil inductor with a closed magnetic circuit is proposed, and its characteristics are described. The conductor of the planar-coil inductor is patterned on a plane, in order to prevent the occurrence of disconnections in the conductor. To decrease the magnetic resistance, the cross-sections of core junctions, at which there is the risk of disconnection, are regulated. A trial-fabricated inductor consisted of one hundred magnetic cores, each of size 180 μm x 180 μm. The inductor dimensions were 2.3x2.3 mm2. The inductance of the device was 50 nH, and the resonance frequency was about 400 MHz.
AB - A break in the electrical or the magnetic path in a conductor or magnetic core is a serious problem for the fabrication of inductors. A planar-coil inductor with a closed magnetic circuit is proposed, and its characteristics are described. The conductor of the planar-coil inductor is patterned on a plane, in order to prevent the occurrence of disconnections in the conductor. To decrease the magnetic resistance, the cross-sections of core junctions, at which there is the risk of disconnection, are regulated. A trial-fabricated inductor consisted of one hundred magnetic cores, each of size 180 μm x 180 μm. The inductor dimensions were 2.3x2.3 mm2. The inductance of the device was 50 nH, and the resonance frequency was about 400 MHz.
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U2 - 10.1109/TJMJ.1992.4565426
DO - 10.1109/TJMJ.1992.4565426
M3 - Article
AN - SCOPUS:0026875957
VL - 7
SP - 474
EP - 478
JO - IEEE translation journal on magnetics in Japan
JF - IEEE translation journal on magnetics in Japan
SN - 0882-4959
IS - 6
ER -