Radio frequency filter and filtering unit thereof
AssigneeHon Hai Precision Industry Co., Ltd.
InventorsShen-Chun Li, Shou-Kuo Hsu, Yung-Chieh Chen, Hsiao-Yun Su, Hsien-Chuan Liang
Life of this patent
Estimating the term…
Abstract
Parameters of a radio frequency filter can be changed by changing structure of each component of the filter. Material of each component, diameters of each of magnetic cylinders, density of each of conductive coils, thickness of a dielectric layer, and thickness of an insulation tube can be changed. When any component needs to be replaced, each cover is rotated, with connection partitions moving to two slots of an insulation portion, to detach the filter.
Claims11
A filtering unit comprising:
- an insulation tube;
- an inductance component received in the insulation tube;
- two conductive covers, each being detachably mounted to a corresponding one of opposite ends of the insulation tube, and electrically contacting with two ends of the inductance component at the opposite ends of the insulation tube, respectively;
- and
- a capacitance component having a metal inner tube fitting around the insulation tube, a metal outer tube insulated from and fitting around the metal inner tube, wherein
- at least one contacting tab perpendicularly projects from an inner wall of the metal inner tube and passes through the insulation tube to contact with one of the two conductive covers, the metal outer tube is grounded.
A radio filter comprising a plurality of filtering units, each filtering unit comprises:
- an insulation tube;
- an inductance component received in the insulation tube, the inductance component comprising a first end and a second end;
- a first conductive cover and a second conductive cover detachably mounted to opposite ends of the insulation tube, and electrically contacting with the first and second ends of the inductance component respectively;
- and
- a capacitance component comprising a metal inner tube fitting around the insulation tube, a metal outer tube insulated from and fitting around the metal inner tube, at least one contacting tab perpendicularly projecting from an inner wall of the metal inner tube and passing through the insulation tube to contact with the second conductive cover, wherein
- the metal outer tube is grounded, the first and second conductive covers function as an input terminal and an output terminal of each filtering unit, the plurality of filtering units are connected in series with one of the first conductive covers receiving external signals and one of the second conductive covers outputting filtered signals.
Dependencies are inferred from the claim text.