Title :
A CMOS Integrated Power Detector for UWB
Author :
Townsend, Kenneth A. ; Haslett, James W. ; Nielsen, John
Author_Institution :
Schulich Sch. of Eng., Calgary Univ., Alta.
Abstract :
An integrated CMOS RF power detector for wideband systems that does not require additional processing steps is presented. The received signal modulates the resistance of a MOSFET biased in triode to produce a DC current at the input of a transimpedance amplifier proportional to the received power. The resulting voltage is applied to an auto-zeroed logarithmic amplifier that provides offset cancellation without lowpass filtering. Simulation shows that the detector is capable of resolving a 40dB input dynamic range across the 3-10GHz UWB spectrum while dissipating less than 8mW.
Keywords :
CMOS integrated circuits; MOSFET; microwave amplifiers; triodes; ultra wideband communication; 3 to 10 GHz; MOSFET biased; UWB spectrum; auto-zeroed logarithmic amplifier; integrated CMOS RF power detector; transimpedance amplifier; triode; wideband systems; Broadband amplifiers; CMOS process; Detectors; MOSFET circuits; Power MOSFET; Power amplifiers; Radio frequency; Radiofrequency amplifiers; Voltage; Wideband;
Conference_Titel :
Circuits and Systems, 2007. ISCAS 2007. IEEE International Symposium on
Conference_Location :
New Orleans, LA
Print_ISBN :
1-4244-0920-9
Electronic_ISBN :
1-4244-0921-7
DOI :
10.1109/ISCAS.2007.377987
