Title :
A Pulse Generator for UWB-IR Based on a Relaxation Oscillator
Author :
Fernandes, Jorge R. ; Gonçalves, Hugo B. ; Oliveira, Luís B. ; Silva, Manuel M.
Author_Institution :
Tech. Univ. of Lisbon, Lisbon
fDate :
3/1/2008 12:00:00 AM
Abstract :
We propose the adaptation of a well-known relaxation oscillator to produce a modulated Gaussian pulse suitable for ultra-wide-band (UWB) impulse radio (IR). The proposed circuit has low area and low power consumption, can easily be modulated by a digital signal, and requires no special technology options; these features make it suitable for UWB-IR low-cost applications. The circuit behavior is confirmed by simulation and by experimental results on a prototype designed in austriamicrosystems 0.35-mum SiGe-BiCMOS technology.
Keywords :
BiCMOS integrated circuits; Ge-Si alloys; pulse generators; relaxation oscillators; ultra wideband communication; Gaussian pulse; SiGe; SiGe-BiCMOS technology; UWB-IR; digital signal; pulse generator; relaxation oscillator; size 0.35 mum; ultra-wide-band impulse radio; Impulse radio (IR); pulse generator; relaxation oscillators; ultra-wide-band (UWB);
Journal_Title :
Circuits and Systems II: Express Briefs, IEEE Transactions on
DOI :
10.1109/TCSII.2008.918968
