Anatech Electronics introduced the Model AS816N335 extremely high Q notch filter designed for 800 MHz GSM applications that has extremely sharp transition characteristics from the stopband to the passbands, and extremely high rejection of -70 dB making. It is an excellent choice for use in base station applications, either indoors or outdoors.
3H Communication Systems model number XLCN400-30-7SS, is a leadless SMT bandpass filter with a notch integrated into the passband