Title :
Dynamic range considerations for wideband Zero-IF receivers
Author :
Ding, Yinhao ; Trinkle, Matthew
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. of Adelaide, Adelaide, SA
Abstract :
This paper considers the suitability of the Zero-IF architecture for wideband receivers in modern radar and communication systems. The main performance measures are the overall system dynamic range including the effects of phase and amplitude I/Q imbalances. An adaptive I/Q channel mismatch calibration algorithm is used to reduce the I/Q mismatch, and the suitability of this calibration algorithm for wideband system has been tested. The results indicate that the dynamic range of more than 50 dB is achievable in a 100 MHz bandwidth system after I/Q mismatch calibration.
Keywords :
calibration; receivers; adaptive I/Q channel mismatch calibration; bandwidth 100 MHz; dynamic range; wideband zero-IF receivers; Adaptive systems; Bandwidth; Calibration; Decorrelation; Demodulation; Dynamic range; Filters; Noise figure; Radio frequency; Wideband; I/Q mismatch; Zero-IF; dynamic range;
Conference_Titel :
Industrial Electronics and Applications, 2009. ICIEA 2009. 4th IEEE Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-1-4244-2799-4
Electronic_ISBN :
978-1-4244-2800-7
DOI :
10.1109/ICIEA.2009.5138548
