Resonator for filters
AssigneeNokia Solutions and Networks Oy
InventorEfstratios DOUMANIS
Life of this patent
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Abstract
The present subject matter relates to a resonator comprising a chamber comprising a first wall, a second wall opposite the first wall, and side walls; a first cylinder grounded on one of the first and second walls and extending into the chamber; a second cylinder which is coaxial with the first cylinder and grounded on the other wall of the first and second walls and extending into the chamber; a tuner being coaxial with the second cylinder and grounded on the bottom of the first cylinder; and a dielectric tube is configured to circumscribe the tuner along an overlap length.
Claims17
A resonator comprising
- a chamber comprising a first wall, a second wall opposite the first wall, and side walls;
- a first cylinder grounded on one of the first and second walls and extending into the chamber;
- a second cylinder which is coaxial with the first cylinder and grounded on the other wall of the first and second walls and extending into the chamber;
- a tuner being coaxial with the second cylinder and grounded on a bottom of the first cylinder;
- and
- a dielectric tube being coaxial with the second cylinder and being configured to circumscribe the tuner along an overlap length.
A method of radio frequency filtering comprising passing a signal for filtering through at least one resonator, the resonator comprising a chamber comprising a first wall, a second wall opposite the first wall, and side walls;
- a first cylinder grounded on one of the first and second walls and extending into the chamber;
- a second cylinder which is coaxial with the first cylinder and grounded on the other wall of the first and second walls and extending into the chamber;
- a tuner being coaxial with the second cylinder and grounded on the bottom of the first cylinder;
- and a dielectric tube being coaxial with the second cylinder and being aligned with a cavity hole on the other wall, the dielectric tube being configured to circumscribe the tuner along an overlap length.
Dependencies are inferred from the claim text.