High-pass filter

File:High pass filter.svg

A passive high-pass filter

File:Active Highpass Filter RC.svg

An active high-pass filter

File:75 Hz HPF on Smaart.jpg

Signal being filtered with 75 Hz cutoff frequency high-pass filter

A high-pass filter is an electronic filter that passes the frequency component of a signal above a certain value (cutoff frequency). The frequency component below that certain value will be suppressed to almost zero.

Related pages

• Low-pass filter
• Band-pass filter
• Band-stop filter