Title :
Adaptive IP2 calibration scheme for direct-conversion receivers
Author :
Dufrene, Krzysztof ; Weigel, Robert
Author_Institution :
Inst. for Electron. Eng., Erlangen-Nurnberg Univ., Erlangen, Germany
Abstract :
This paper presents a novel even order intermodulation distortion cancellation scheme based on adaptive digital calibration of the RF downconversion mixer. The system, designed for an on-chip implementation, utilizes a low-complexity LMS-based equalizer. Behavioral and circuit level simulations indicate the feasibility of the approach.
Keywords :
analogue integrated circuits; calibration; intermodulation distortion; mixers (circuits); radio receivers; radiofrequency integrated circuits; LMS-based equalizer; RF downconversion mixer; adaptive IP2 calibration scheme; adaptive digital calibration; direct-conversion receivers; intermodulation distortion cancellation scheme; on-chip implementation; Band pass filters; Baseband; Calibration; Equations; Filtering; Integrated circuit noise; Intermodulation distortion; Radio frequency; Receivers; Resistors;
Conference_Titel :
Radio and Wireless Symposium, 2006 IEEE
Print_ISBN :
0-7803-9412-7
DOI :
10.1109/RWS.2006.1615107
