Title :
Analysis and design of negative impedance LC oscillators using bipolar transistors
Author :
Zhan, Jing-Hong Conan ; Maurice, Kyle ; Duster, Jon ; Kornegay, Kevin T.
Author_Institution :
Dept. of Electr. & Comput. Eng., Cornell Univ., Ithaca, NY, USA
Abstract :
This paper provides an analysis on how the application of emitter degeneration increases the oscillation frequency while improving the output phase noise and tuning range of LC oscillators designed using bipolar transistors. Design methodology, simulation results and circuit examples for LC oscillators employing this technique are given.
Keywords :
bipolar transistor circuits; circuit tuning; negative resistance circuits; phase noise; voltage-controlled oscillators; bipolar transistor; carrier-to-noise ratio; circuit simulation; design analysis; emitter degeneration; negative impedance LC oscillator; oscillation frequency; phase noise; tuning range; voltage-controlled oscillator; Bipolar transistors; Circuit optimization; Design methodology; Equations; Frequency conversion; Frequency synthesizers; Impedance; Phase noise; Tuning; Voltage-controlled oscillators;
Journal_Title :
Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on
DOI :
10.1109/TCSI.2003.818617
