VHF RADIO PATH WITH INTERMEDIATE FREQUENCY FILTER AND FREQUENCY DETECTOR ON SURFACE ACOUSTIC WAVES

The article applies a new approach to microminiaturization of the VHF radio path with significant improvement its main characteristics based on acoustoelectronic elements SAW. In particular, instead intermediate frequency filter (IF), which in most cases is implemented help "coil " products (LC circuits), CSF (concentrated selection filter) proposed be characteristic curve, and same traditional detector (FD) – FD by phase-shifting delay line (DL). Both SAW devices are integrated into path, given.