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Architecture and algorithm for ultra-high precision image rejection mixer using digital compensation

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4 Author(s)
Young Jin Kim ; Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Seoul, South Korea ; Hyung Chul Park ; Il Ku Nam ; Kwyro Lee

A Weaver-type ultra-high precision image rejection RF mixer architecture composed of analogue RF and digital IF mixers is proposed, along with the error compensating algorithm for various gain and phase mismatches. A prototype 2.4 GHz image rejection mixer using this technique with an image rejection ratio >70 dB is demonstrated

Published in:

Electronics Letters  (Volume:36 ,  Issue: 19 )