Band Stop Filter
An electronic network which passes signals having frequencies above and below the band-elimination frequency span.
When response is sharp they are called a notch filter and remove a spot frequency.
Series LC to Ground
- Low Impedance at resonance
- Stops a given band of frequencies at resonance.
- Passes outside of resonance
Parallel LC to Ground
- High Impedance at resonance
- Blocks the unwanted signal
- Passes others outside of resonance