US Patent No. 9,276,548

STACKED LC RESONATOR AND BAND PASS FILTER USING THE SAME


Patent No. 9,276,548
Issue Date March 01, 2016
Title Stacked Lc Resonator And Band Pass Filter Using The Same
Inventorship Tzyy-Sheng Horng, Kaohsiung (TW)
Chien-Hsun Chen, Kaohsiung (TW)
Chien-Hsiang Huang, Kaohsiung (TW)
Sung-Mao Wu, Kaohsiung (TW)
Assignee NATIONAL SUN YAT-SEN UNIVERSITY, Kaohsiung (TW)

Claim of US Patent No. 9,276,548

8. A band pass filter structure comprising:
a coupled structure of the two stacked LC resonators, comprising:
a flat metal base layer;
a plurality of coupled spiral inductors disposed layer-by-layer, parallel to the flat metal base layer; and
a plurality of coupled dielectric layers, formed between the coupled spiral inductors, and between the flat metal base layer
and the coupled spiral inductor corresponding to the flat metal base layer;

wherein each of the plurality of coupled spiral inductor pairs comprises two spiral inductors that are disposed correspondingly
to each other,

wherein each of the coupled structure of the two stacked LC resonators has N spiral inductors and N conductive poles for N>1,
and the Nth conductive pole is connected between the second end of the (N?1)th spiral inductor of the each of the coupled
structure of the two stacked LC resonators and the first end of the Nth spiral inductor of the each of the coupled structure
of the two stacked LC resonators, and the second end of the Nth spiral inductor of the each of the coupled structure of the
two stacked LC resonators is open-ended.