Patent ID: 8723622
Filing Date: 2014-05-13
Classification: H03H

Abstract:
1. A radio frequency filter comprising: a parallel inductance capacitance (LC) filtering unit comprising a first inductive component and a first capacitive component connected in parallel, wherein a first terminal of the parallel LC filtering unit is grounded, the first capacitive component comprises a plurality of detachable first laminations, a capacitor characteristic of the first capacitive component varies with respect to a total number of the plurality of detachable first laminations; and a serial LC filtering unit comprising a second inductive component and a second capacitive component connected in series, wherein a first terminal of the serial LC filtering unit functions as an input terminal of the filter, a second terminal of the serial LC filtering unit is connected to a second terminal of the parallel LC filtering unit, and functions as an output terminal of the filter; wherein the parallel LC filtering unit further comprises a first insulation sleeve, the serial LC filtering unit further comprises a second insulation sleeve, the first inductive component and the first capacitive component are received in the first insulation sleeve, and the second inductive component and the second capacitive component are received in the second insulation sleeve.