Electromechanical filter end circuit capacitance - consists of transducer static capacitance, and uses gyrator circuit as inductance with their temp. coeffts equal and opposite

摘要

The filter has input and output resonators. It has a set of electromechanical transducers whose electrodes are connected to electric end circuits. The static transducer capacitance (Co) of one of the transducers is used as the end circuit capacitance and there is a gyrator circuit (GS) which is terminated by a capacitance (C) which is used as the end circuit inductance. The temp. coefficient of the capacitance (C) and/or of the gyration factor of the gyrator circuit (GS) are such that the inductance has a temp. coefficient equal and opposite to that of capacitance (C).