Title :
GaAs monolithic 1.5 to 2.8 GHz tunable ring oscillator with accurate quadrature outputs
Author :
Wu, Wen-Chieh ; Lin, Hao-Hsiung
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
fDate :
2/14/2002 12:00:00 AM
Abstract :
The design, fabrication and characteristics of a 1.5 to 2.8 GHz tunable ring oscillator with two quadrature outputs are described. Tuning range is 1.3 GHz or 60.5% bandwidth. The phase difference between the two outputs is proved to be 90°. The oscillator phase noise is -81.27 dBc/Hz at 100 kHz offset from the carrier at 2.736 GHz
Keywords :
III-V semiconductors; MESFET integrated circuits; MMIC oscillators; UHF oscillators; circuit tuning; field effect MMIC; gallium arsenide; integrated circuit design; integrated circuit measurement; integrated circuit noise; phase noise; 1.5 to 2.8 GHz; 2.736 GHz; GaAs; GaAs MESFET MMIC process; GaAs monolithic tunable ring oscillator; bandwidth; oscillator characteristics; oscillator design; oscillator fabrication; oscillator phase noise; output phase difference; quadrature outputs; tunable ring oscillator; tuning range;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20020111
