PACKAGE RESONANCE SUPPRESSING CIRCUIT, OSCILLATOR, HIGH FREQUENCY MODULE, COMMUNICATION MACHINE APPARATUS, AND PACKAGE RESONANCE SUPPRESSING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a package resonance suppressing circuit which is excellent in resonance suppressing property and is capable of ensuring an enough element mounting area on a substrate in a small-sized package; and also to provide an oscillator, a high frequency module, a communication machine apparatus, and a package resonance suppressing method.;SOLUTION: The oscillator 1 comprises the package 2, a high frequency circuit substrate 3, and the package resonance suppressing circuit 4. The package resonance suppressing circuit 4 is formed to constitute a closed circuit C by connecting through holes 41, 42 to a ground conductor 32 of the high frequency circuit substrate 3, and connecting patterns 43, 44 to the through holes 41, 42 in a one to one correspondence, and further connecting a resistor 46 between the patterns 43, 44. Preferably, the direction of the resistor 46 is set to be perpendicular to a magnetic field H by cavity resonance.;COPYRIGHT: (C)2006,JPO&NCIPI