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US 8,618,894 B2Granted
Multi-mode resonant filter
AssigneeKmw Inc.
InventorsDuk-Yong Kim, Nam-Shin Park
Life of this patent
Estimating the term…
Abstract
Various multi-mode resonant filters including a housing having a cavity, are provided. The multi-mode resonant filters include a Dielectric Resonant (DR) element received in the cavity of the housing, and a plurality of transmission lines for connecting a point on one of a first axis, a second axis, and a third axis with a point on another axis. The first axis, the second axis, and the third axis are orthogonal to each other with respect to a center of the DR element.
Claims31
A multi-mode resonant filter, comprising:
- a housing comprising a cavity therein;
- a Dielectric Resonant (DR) element configured to be received in the housing, the DR element forming at least three resonant modes in different directions;
- a first transmission line aligned along a first direction in which a first resonant mode among the at least three resonant modes is formed;
- a second transmission line aligned along a second direction in which a second resonant mode among the at least three resonant modes is formed, the second resonant mode being different from the first resonant mode;
- and
- a third transmission line aligned along a third direction in which a third resonant mode among the at least three resonant modes is formed, the third resonant mode being different from the first resonant mode and the second resonant mode,
- wherein the first transmission line, the second transmission line, and the third transmission line couple the first resonant mode, the second resonant mode, and the third resonant mode;
- the first, second, and third transmission lines each comprise first and second ends and
- one of the first and second ends of at least one of the first transmission line, the second transmission line, and the third transmission line is directly connected to one of the first and second ends of another one of the first transmission line, the second transmission line, and the third transmission line.
6 more elements
A multi-mode resonant filter, comprising:
- a housing comprising a cavity;
- a Dielectric Resonant (DR) element received in the cavity of the housing;
- and
- a plurality of transmission lines at least one of which has an end connecting a point on one of a first axis, a second axis, and a third axis and another end connecting another point on another one of the first axis, the second axis, and the third axis,
- wherein the first axis, the second axis, and the third axis are orthogonal to each other with respect to a center of the DR element.
2 more elements
Dependencies are inferred from the claim text.