Bragg reflection notch filters with plastic sheets typically have the following characteristics:
- > 30 dB attenuation over 1% bandwidth or
- > 40 dB attenuation over 2% bandwidth
- ~ 1 dB attenuation away from the notches
- harmonics are also rejected
GA has supplied these filters with fundamental notch frequencies at 82.6 GHz, 84 GHz, and 110 GHz.
GA also supplies notch filters in fundamental rectangular waveguide.
John Doane, GA-MFE Technologies