Title :
A 29-GHz low phase noise differential voltage controlled oscillator using 2-µm GaAs HBT process
Author :
Yeh, Yen-Liang ; Chang, Hong-Yeh ; Chiong, Chau-Ching
Author_Institution :
Dept. of Electr. Eng., Nat. Central Univ., Jhongli
Abstract :
A 29-GHz low phase noise differential voltage controlled oscillator (VCO) using 2-mum AlGaAs/GaAs HBT process is presented in this paper. A common-emitter (CE) topology with a capacitive feedback is utilized to the circuit design. This circuit demonstrates a measured phase noise of -112 dBc/Hz at 1-MHz offset frequency, a tuning range of 0.55 GHz and an output power of higher than 1 dBm.
Keywords :
III-V semiconductors; MMIC oscillators; aluminium compounds; bipolar MMIC; circuit tuning; gallium arsenide; heterojunction bipolar transistors; integrated circuit design; integrated circuit noise; phase noise; voltage-controlled oscillators; AlGaAs-GaAs; GaAs; HBT process; VCO; capacitive feedback; circuit tuning; common-emitter topology; frequency 29 GHz; integrated circuit design; low-phase noise differential voltage controlled oscillator; size 2 mum; Circuit synthesis; Circuit topology; Frequency measurement; Gallium arsenide; Heterojunction bipolar transistors; Noise measurement; Phase measurement; Phase noise; Power measurement; Voltage-controlled oscillators; GaAs; HBT; VCO; low phase noise;
Conference_Titel :
Microwave Conference, 2008. APMC 2008. Asia-Pacific
Conference_Location :
Macau
Print_ISBN :
978-1-4244-2641-6
Electronic_ISBN :
978-1-4244-2642-3
DOI :
10.1109/APMC.2008.4958384
