RESONATOR

摘要

PROBLEM TO BE SOLVED: To provide a resonator of which the change of resonance frequency due to manufacturing dispersions does not occur. SOLUTION: The resonator consists of a pattern coil 1 formed on a printed circuit board and one end of which is connected to a ground pattern 5 and of a pattern capacitor that is configured by alternately approaching 1st and 2nd interdigital patterns 11, 12. A change in the inductance of the pattern coil is cancelled by the capacitance change of the pattern capacitor so as to make the LC product constant.