Title :
A note on VHF acoustically coupled bandpass crystal filters
Author :
Smythe, R.C. ; Horton, W.H.
fDate :
3/1/1967 12:00:00 AM
Abstract :
This letter reports an experimental investigation in which the use of acoustical coupling between thickness-shear resonators to obtain a monolithic crystal filter with bandpass characteristics is extended to the VHF region and overtone operation. Attenuation curves for a 112-MHz fifth-overtone filter with a bandwidth of 14 kHz are given, showing good stopband performance over the 10 to 300 MHz range of measurement.
Keywords :
Anisotropic magnetoresistance; Band pass filters; Bandwidth; Coupling circuits; Frequency; Magnetic anisotropy; Perpendicular magnetic anisotropy; Plasmas; Resonator filters; VHF circuits;
Journal_Title :
Proceedings of the IEEE
DOI :
10.1109/PROC.1967.5512
