Gg. Denisov et al., SIMPLE MILLIMETER-WAVE NOTCH FILTERS BASED ON RECTANGULAR WAVE-GUIDE EXTENSIONS, International journal of infrared and millimeter waves, 16(7), 1995, pp. 1231-1238
A new efficient notch filter is proposed. Some details of notch filter
operation at millimeter waves are discussed. A 110 GHz notch filter i
s numerically and experimentally tested.