FREQUENCY CONVERTING APPARATUS, FREQUENCY GENERATING APPARATUS, BAND LIMIT FILTER UTILIZING SAME, TRANSMITTER AND RECEIVER

摘要

PROBLEM TO BE SOLVED: To reduce an unwanted signal within a small-scaled circuit.;SOLUTION: A frequency converting apparatus 300 includes a mixer 30, an ATT 32 and a frequency divider 34. The mixer 30 inputs predetermined two signals and outputs a frequency-converted signal. The ATT 32 adjusts an amplitude of the frequency-converted signal. Further, the frequency divider 34 divides a frequency of the amplitude-adjusted signal. In such a case, the unwanted wave is reduced by utilizing the property of the frequency divider 34 that sensitivity of frequency division becomes adverse, excepting for a dip point.;COPYRIGHT: (C)2006,JPO&NCIPI