LC resonant part with a via hole inductor directly connected to the ground electrode
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United States of America Patent
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-
Nov 10, 1998
Grant Date -
N/A
app pub date -
Dec 27, 1996
filing date -
Dec 28, 1995
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An LC resonant device effectively limits radiated noise and provides a high Q-value. In one embodiment, the LC resonant device comprises a laminated LC filter formed of: two insulating sheets having a first ground electrode and a second ground electrode formed on their respective surfaces; an insulating sheet having a third ground electrode on its surface and having a through hole formed in its central portion and connected to the third ground electrode; at least one insulating sheet having a through hole formed in its central portion; two insulating sheets having first and second capacitor electrodes on their surfaces respectively; and a cover insulating sheet. The through holes form an inductive conductor perpendicular to the capacitor electrodes. At least, one of the three ground electrodes is connected directly to the inductive conductor and the other ground electrodes are not directly connected to the inductive conductor.
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