Title :
20-GHz InP-HBT voltage-controlled oscillator with wide tuning range
Author :
Djahanshahi, H. ; Saniei, N. ; Voinigescu, S.P. ; Maliepaard, M.C. ; Salama, C.A.T.
Author_Institution :
Dept. of Electr. & Comput. Eng., Toronto Univ., Ont., Canada
Abstract :
This paper presents the design and implementation of a 20-GHz-band differential VCO using InP HBT process technology. Aimed at 20- or 40-Gb/s fiber optic applications, the design is based on a single-stage feedback amplifier with no intentional L or C. The salient features of the proposed VCO are wide frequency tuning range compared to LC oscillators, and low power consumption and transistor count compared to ring-oscillator counterparts. The implemented VCO has an adjustable frequency range from 13.75 GHz to 21.5 GHz and provides two complementary outputs. Total power consumption at 18.6 GHz is 130 mW, while the phase noise is -87.6 dBc/Hz measured at 1 MHz offset.
Keywords :
III-V semiconductors; MMIC oscillators; SONET; bipolar MMIC; circuit tuning; feedback amplifiers; heterojunction bipolar transistors; indium compounds; integrated optoelectronics; low-power electronics; optical communication equipment; optical fibre networks; phase noise; voltage-controlled oscillators; 13.75 to 21.5 GHz; 130 mW; 20 GHz; 20 Gbit/s; 40 Gbit/s; HBT voltage-controlled oscillator; InP; SONET/SDH; adjustable frequency range; complementary outputs; differential VCO; fiber optic applications; frequency tuning range; phase noise; power consumption; single-stage feedback amplifier; tuning range; Energy consumption; Feedback amplifiers; Frequency; Heterojunction bipolar transistors; Indium phosphide; Optical design; Optical fibers; Optical tuning; Ring oscillators; Voltage-controlled oscillators;
Conference_Titel :
Radio Frequency Integrated Circuits (RFIC) Symposium, 2001. Digest of Papers. 2001 IEEE
Conference_Location :
Phoenix, AZ, USA
Print_ISBN :
0-7803-6601-8
DOI :
10.1109/RFIC.2001.935666
