Define cut off frequency.
Understand the Problem
The question is asking for a definition of the term 'cut off frequency,' which is a key concept in fields like electronics and signal processing. The cut off frequency typically refers to the frequency at which the output signal power drops below a certain level (often 3 dB) compared to the maximum passband signal power. Understanding this concept is crucial for analyzing filters and frequency-dependent systems.
Answer
The frequency where signal power is halved or filter response falls off.
The cutoff frequency is the frequency at which the power of a signal is reduced to half of its original value or where a filter's impulse response starts to fall off, marking the boundary between the passband and the stopband.
Answer for screen readers
The cutoff frequency is the frequency at which the power of a signal is reduced to half of its original value or where a filter's impulse response starts to fall off, marking the boundary between the passband and the stopband.
More Information
Cutoff frequencies are essential in electronic and acoustic filters, marking the transition from passband to stopband.
Tips
Ensure to distinguish between the cutoff frequency in various contexts, like filters vs waveguides.
Sources
- Cutoff frequency - Wikipedia - en.wikipedia.org
- What is Cutoff Frequency? - Keysight Oscilloscope Glossary - keysight.com
- Cutoff Frequency - an overview | ScienceDirect Topics - sciencedirect.com
