Laminate type LC composite device having a micro coil

Details Laminate type LC composite device having a micro coil Laminate type LC composite device having a micro coil

1994-12-22

1996-06-25

Lee, Benny

Wave transmission lines and networks

Coupling networks

Frequency domain filters utilizing only lumped parameters

333219, H03H 700

Patent

active

055304117

ABSTRACT:
A laminate type LC composite device has a coil connected in series between an input electrode and an output electrode, and a capacitor connected in parallel between the input electrode and the output electrode. Further, a micro coil is connected to the coil in series. The coil has an inductance of L and a stray capacitance of C, and the micro coil has an inductance of L' and a stray capacitance of C'. The inductances L and L', and the stray capacitances C and C' fulfill the conditions: LC>L'C', to thereby increase the high-frequency characteristics and the insertion loss in a high frequency area of the LC composite device.

REFERENCES:
patent: 4845452 (1989-07-01), Sasaki et al.
patent: 5197170 (1993-03-01), Senda et al.
patent: 5357227 (1994-10-01), Tonegawa et al.

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