Title :
A fully integrated VCO at 2 GHz
Author :
Zannoth, Markus ; Kolb, Bernd ; Fenk, Joseph ; Weigel, Robert
Author_Institution :
Inst. for Commun. & Inf. Eng., Linz Univ., Austria
fDate :
12/1/1998 12:00:00 AM
Abstract :
A fully integrated voltage-controlled oscillator at a frequency of 2 GHz with low phase noise has been implemented in a standard bipolar process with a ft of 25 GHz. The design is based on an LC-resonator with vertical-coupled inductors. Only two metal layers have been used. The supply voltage of the oscillator is 2.7 V. The phase noise is only -136 dB/Hz at 4.7 MHz frequency offset. A tuning range of 150 MHz is achieved with integrated tuning diodes
Keywords :
UHF oscillators; bipolar analogue integrated circuits; circuit tuning; integrated circuit noise; phase noise; voltage-controlled oscillators; 2 GHz; 2.7 V; LC resonator; bipolar process; cutoff frequency; frequency offset; fully integrated VCO; phase noise; tuning diode; vertical coupled inductors; voltage controlled oscillator; Diodes; Filters; Frequency; Inductors; Local oscillators; Phase noise; Q factor; Telecommunication standards; Tuning; Voltage-controlled oscillators;
Journal_Title :
Solid-State Circuits, IEEE Journal of
