Title :
A compact full MMIC module for Ku-band phase-locked oscillators
Author :
Ohira, Takashi ; Kato, Haruhiko ; Araki, Katsuhiko ; Ishitsuka, Fuminori
Author_Institution :
Radio Commun. Syst. Lab., NTT, Kanagawa, Japan
fDate :
4/1/1989 12:00:00 AM
Abstract :
A compact Ku-band phase-locked oscillator module has been developed in a full MMIC (monolithic microwave integrated circuit) configuration. The module includes an MMIC voltage-controlled oscillator, an analog frequency divider, and interstage amplifiers. The constituent monolithic chips are integrated in a very small single-package module and operate at the target frequencies without any external trimming or matching network. The oscillator is tuned more than 1 GHz with a constant output amplitude. The frequency-divided output is also obtained over the whole tuning range. Spurious output is not found at any frequency up to 22 GHz. In spite of the very low-Q factor of GaAs monolithic circuitry, the oscillator phase noise exhibited is less than -80 dBc/Hz, due to the high-gain, high-speed phase lock.<>
Keywords :
MMIC; microwave oscillators; modules; packaging; phase-locked loops; tuning; variable-frequency oscillators; 22 GHz; GaAs; Ku-band; MMIC module; PLL; SHF; analog frequency divider; interstage amplifiers; monolithic microwave integrated circuit; phase-locked oscillators; single-package module; tuning range; voltage-controlled oscillator; Circuit optimization; Frequency conversion; Gallium arsenide; MMICs; Microwave integrated circuits; Microwave oscillators; Monolithic integrated circuits; Phase noise; Tuning; Voltage-controlled oscillators;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
