A 70 MHz notch filter employing a surface-acoustic-wave resonator in a hybrid-coil circuit to produce a notch depth of 50 dB has been developed. The notch frequency is tunable over a 40 kHz range and the passband attenuation is approximately 7 dB.
M. RedwoodR.B. TopolevskyR.F. MitchellJ.S. Palfreeman
I‐Tseng TangHan‐Jan ChenMau‐Phon HoungYeong‐Her Wang
Han‐Jan ChenI‐Tseng TangMau‐Phon HoungYeong‐Her Wang