Title :
A voltage-controlled oscillator for IEEE 802.11a and HiperLAN2 application
Author :
Bonfanti, A. ; Levantino, S. ; Pellerano, S. ; Samori, C. ; Lacaita, A.L. ; Torrisi, F.
Author_Institution :
Dip. di Elettronica e informazione, Politecnico di Milano, Italy
Abstract :
This paper presents an integrated voltage-controlled oscillator with a frequency doubler, intended for 5-to-6 GHz applications. The oscillator adopts a common-collector Colpitts topology driving a series-connected off-chip tank. This circuit demonstrates a 44% tuning range and a harmonic rejection better than 40 dB, dissipating 28mA from a 2.3V voltage supply. The phase noise at 1 MHz offset from the carrier is better than -120 dBc/Hz over the entire tuning range.
Keywords :
IEEE standards; circuit tuning; frequency multipliers; integrated circuit design; voltage-controlled oscillators; wireless LAN; 1 MHz; 2.3 V; 28 mA; 5 to 6 GHz; HiperLAN2; IEEE 802.11a; common-collector Colpitts topology; frequency doubler; harmonic rejection; phase noise; series-connected off-chip tank; voltage-controlled oscillator; Circuit optimization; Circuit topology; Frequency estimation; Packaging; Phase locked loops; Power supplies; Tuning; Varactors; Voltage; Voltage-controlled oscillators;
Conference_Titel :
Solid-State Circuits Conference, 2003. ESSCIRC '03. Proceedings of the 29th European
Conference_Location :
Estoril, Portugal
Print_ISBN :
0-7803-7995-0
DOI :
10.1109/ESSCIRC.2003.1257230
