OSCILLATOR, TRANSMISSION/RECEPTION DEVICE, AND FREQUENCY SYNTHESIZER

摘要

An output terminal 6 is provided at the connecting point 5 between the collector terminal of a transistor 1 and an open-ended stub 4 by connecting the open-ended stub 4 to the collector terminal of the transistor 1, the open-ended stub 4 having a line length equal to a quarter of the wavelength of a signal of frequency 2N·F 0 or 2N times the oscillation frequency F 0 . In addition, an output terminal 9 is provided at a connecting point 8 located at a distance equal to a quarter of the wavelength of a signal of oscillation frequency F 0 from the end of an open-ended stub 7 by connecting the open-ended stub 7 to the base terminal of the transistor 1, the open-ended stub 7 having a line length longerthanaquarterof thewavelengthof thesignalof oscillation frequency F 0 .