Title :
Automatic mismatches calibration in Hartley image-reject receiver
Author :
Elmala, Mostafa A I ; Embabi, Sherif H K
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
Abstract :
This paper presents a modified Hartley image-reject architecture. The design automatically calibrates for phase and gain mismatches that limit its image-rejection performance. Calibration is done using a calibrating tone at either the desired or image channel frequency, and can be generated on-chip. An improvement of at least 13 dB in image rejection, over the un-calibrated case, is achieved.
Keywords :
calibration; circuit simulation; integrated circuit design; radio receivers; Hartley image-reject architecture; Hartley image-reject receiver; calibrating tone; gain calibration loop; image channel frequency; image-rejection performance; phase calibration loop; receiver automatic mismatch calibration; Active appearance model; Calibration; Computer architecture; Filters; Frequency; Local oscillators; Performance gain; Signal generators; Temperature; Time division multiple access;
Conference_Titel :
SOC Conference, 2003. Proceedings. IEEE International [Systems-on-Chip]
Print_ISBN :
0-7803-8182-3
DOI :
10.1109/SOC.2003.1241463
