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Novel difference-frequency dual-signal injection method for CMOS mixer linearization

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2 Author(s)
Cheng, K.-K.M. ; Dept. of Electron. Eng., Chinese Univ. of Hong Kong, China ; Chung-Fai Au-Yeung

This paper presents the application of dual-signal injection technique to the reduction of intermodulation distortion (IMD) level in double-balanced mixer. In this method, "difference-frequency" signal components are optimally fed to the mixer through the biasing circuitry for IMD cancellation. For comparison purposes, the measured performance of a 900-MHz complementary metal oxide semiconductor (CMOS) mixer based upon both single and dual injection approaches is shown.

Published in:

Microwave and Wireless Components Letters, IEEE  (Volume:14 ,  Issue: 7 )

Date of Publication:

July 2004

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