High-image-rejection wireless-receiver architecture with a 3-phase active RC complex filter

IEICE Electronics Express

Yuta Kobayashi¹  Mamoru Ugajin¹  Tsuneo Tsukahara² 

[1] Electrical and Electronics Engineering Department, Nippon Institute of Technology;School of Computer Science and Engineering, University of Aizu

关键词: image rejection;    mismatch correction;    three-phase analog circuit;    complex filter;    wireless receiver;    low IF;   

DOI  :  10.1587/elex.12.20150329

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(15)Cited-By(1)This paper proposes a high-image-rejection wireless-receiver architecture with a 3-phase active RC complex filter. The double conversion receiver, in cooperation with RF filter, rejects all image signals. In particular, the double conversion corrects the gain and phase mismatches of the adjacent image, and the image-rejection ratio of the adjacent image depends only on RC mismatches in the complex filter. Thus, the total image-rejection ratio of more than 60 dB can be expected for all the image signals.

【 授权许可】

Unknown