Title :
Modeling a resonant LC tank circuit embedded in a VCO
Author :
Li, Ye-Ming ; Connelly, J.Alvin
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
fDate :
6/24/1905 12:00:00 AM
Abstract :
This paper reveals the frequency-dependent behavior of the effective positive conductance in a passive LC tank circuit embedded in a voltage-controlled oscillator, (VCO). This frequency-dependent behavior of the effective positive conductance makes the signal level of the. VCO also frequency dependent. Moreover, this effective positive conductance is dominated by the series resistance of the inductor and sets the criteria for minimizing the tank current to provide a desired output signal level.
Keywords :
UHF circuits; circuit resonance; transceivers; voltage-controlled oscillators; VCO; effective positive conductance; frequency-dependent behavior; output signal level; resonant LC tank circuit; series resistance; signal level; wired-LAN transceivers; wireless transceivers; Capacitors; Equations; Frequency dependence; Inductors; Parasitic capacitance; Phase noise; RLC circuits; Resonance; Varactors; Voltage-controlled oscillators;
Conference_Titel :
Circuits and Systems, 2002. ISCAS 2002. IEEE International Symposium on
Print_ISBN :
0-7803-7448-7
DOI :
10.1109/ISCAS.2002.1010188
