Microwave Filter

摘要

A microwave filter includes a strip transmission line and a filtering assembly connected to the strip transmission line. The transmission line has an input terminal and an output terminal. The filtering assembly includes a strip first primary branch connected directly to a first connection point of the transmission line. The first primary branch includes a first body portion and a first bent portion at a first end of the first body portion, where the first bent portion is connected directly to the first connection point, and the first body portion is substantially parallel to a body portion of the transmission line. With the microwave filter incorporated in an electric motor, the impedance curve of the transmission line can be matched with a high-frequency EMI curve, and therefore the filtering effect is enhanced, EMI is suppressed and the EMC level improved.

主权项

1. A microwave filter, comprising: a strip transmission line having an input terminal and an output terminal, and a filtering assembly connected to the transmission line, wherein the filtering assembly comprises a strip first primary branch connected directly to a first connection point of the transmission line and a strip first secondary branch connected directly to the first primary branch, and wherein a width of the first secondary branch is different from a width of the first primary branch.