Title :
Design of a High-performance Envelope Detector
Author :
Alegre, J.P. ; Celma, S. ; Sanz, M.T. ; Aldea, C.
Author_Institution :
Dept. of Electronic and Communications Engineering, University of Zaragoza, Zaragoza, Spain. juanpa@unizar.es
Abstract :
A novel envelope detector structure is proposed in this paper that overcomes the traditional trade-off required in these circuits, improving both the tracking and keeping of the signal. The method relies on holding the signal by two capacitors, discharging one when the other is in hold mode and employing the held signals to form the output. Simulation results show a saving greater than 60% of the capacitor area for the same ripple (0.3%) and a release time constant (0.4¿s) much smaller than that obtained by the conventional circuits.
Keywords :
Capacitors; Circuit simulation; Design engineering; Diodes; Envelope detectors; Filters; Frequency; Linearity; Performance gain; Teeth;
Conference_Titel :
Circuits and Systems, 2006. MWSCAS '06. 49th IEEE International Midwest Symposium on
Conference_Location :
San Juan, PR
Print_ISBN :
1-4244-0172-0
Electronic_ISBN :
1548-3746
DOI :
10.1109/MWSCAS.2006.382155
