Title :
Architecture and algorithm for high precision image rejection and spurious rejection mixers using digital compensation
Author :
Youngjin Kim ; Sangho Shin ; Kwyro Lee
Author_Institution :
KAIST, Daejeon, South Korea
Abstract :
A high precision IRM and SRM architecture composed of analog RF and digital IF mixers are proposed. A precise and fast measurement algorithm for gain and phase mismatches is proposed, which are, then, compensated by digital signal processing. A prototype 2.4 GHz IRM with IRR>70 and BW=11 MHz is demonstrated by using this technique.
Keywords :
UHF mixers; analogue processing circuits; compensation; digital signal processing chips; transceivers; 11 MHz; 2.4 GHz; IRM/SRM architecture; analog RF mixers; digital IF mixers; digital compensation; digital signal processing; gain mismatches; image rejection mixer; measurement algorithm; phase mismatches; prototype IRM; spurious rejection mixer; transceiver; Bandwidth; Digital signal processing chips; Filters; Gain measurement; Phase estimation; Phase measurement; Radio frequency; Semiconductor device measurement; Signal processing algorithms; Transmitters;
Conference_Titel :
Microwave Symposium Digest, 2002 IEEE MTT-S International
Print_ISBN :
0-7803-7239-5
DOI :
10.1109/MWSYM.2002.1011752
