Balanced front-end SAW modules with improved selectivity at low frequency offsets for handheld transceivers

This paper presents the new balanced front-end SAW modules with the improved selectivity at the low frequency offsets and fractional bandwidth of 1.5–4% for the 440–470 MHz handheld transceivers. The modules contain 2 SAW filters connected across a low noise bipolar transistor amplifier. The balanced longitudinally-coupled resonator SAW filters on 42° YX… CONTINUE READING