Even-mode resonator filter with high stability
AssigneeAdvanced Ceramic X Corporation
InventorsJyh-Wen Sheen, Chih-Ming Chang
Life of this patent
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Abstract
An even-mode resonator filter is disclosed. The even-mode resonator filter is provided with high stability, and comprises: a first even-mode resonance module, a second even-mode resonance module, a first filter unit and a second filter unit. In the present invention, the first even-mode resonance module comprises a first resonance unit and a second resonance unit, and the second even-mode resonance module comprises a third resonance unit and a fourth resonance unit. By letting the second resonance unit be coupled to the first resonance unit as well as making the third resonance unit be coupled to the fourth resonance unit, the even-mode resonator filter of the present invention has the advantage of eliminating unexpected resonance.
Claims7
An even-mode resonator filter, comprising:
- a first even-mode resonance module, comprising:
- a first resonance unit, having a first end and a second end, and the first end and the second end being coupled to an input end and an output end, respectively;
- and
- a second resonance unit, being coupled between the input end and the output end, and being electrically connected with the first resonance unit in parallel;
- a second even-mode resonance module, being coupled to the first even-mode resonance module, and comprising:
- a third resonance unit, being electrically connected between the first resonance unit and the output end;
- and
- a fourth resonance unit, being electrically connected between the second resonance unit and the output end, and electrically connected with the third resonance unit;
- a first filter unit, being electrically connected between the first resonance unit and the third resonance unit;
- and
- a second filter unit, being electrically connected between the second resonance unit and the fourth resonance unit;
- wherein the first even-mode resonance module, the second even-mode resonance module, the first filter unit, and the second filter unit be integrated in a main body, and the input end and the output end being extended out of the main body.
Dependencies are inferred from the claim text.