ADJUSTABLE HARMONIC FILTERING DEVICE

摘要

The present invention is related to an adjustable harmonic filtering device, mainly comprising a first connecting port, a second connecting port, a harmonic filtering unit, and an adjusting unit, in which a passive network is presented between the first connecting port and the second connecting port, as well as the harmonic filtering unit is connected to the passive network. The harmonic filtering unit comprises a first inductor and a first capacitor. The adjusting unit is adjacent to the first inductor of the harmonic filtering unit, and induced electromagnetically therewith. Thus, frequency-band of the harmonic, to be filtered out by the harmonic filtering unit, may be changed, allowing for reducing loss of signal occurring in the process of transmission between the first connecting port and the second connecting port effectively.

主权项

1. An adjustable harmonic filtering device, comprising:
a first connecting port; a second connecting port, wherein a passive network is presented between said first connecting port and said second connecting port; a harmonic filtering unit, connected to said passive network, and comprising at least one first capacitor and at least one first inductor, wherein said first inductor is connected to said first capacitor in series; and an adjusting unit, adjacent to said first inductor of said harmonic filtering unit, and induced electromagnetically with said first inductor, so as to change frequency-band of harmonic to be filtered out by said harmonic filtering unit.