Notch Filters

The UHF Tunable Quad Notch filter is designed with 4 independent lumped element notch filters in series. The design topology for the filter was selected to achieve constant absolute bandwidth over the 225-512MHz
frequency range. Each notch can be programmed to turn on (active mode) or off (bypass mode). Each notch is tunable over a specific frequency range (or tuning zone). The tuning frequency step for each notch is 100KHz (tuning resolution). The filter is equipped with internal temperature compensation that regulates the Temperature Drift of the Notch Frequency and keeps the notch rejection better than 15dB over the entire operating temperature range.