Title :
A Modified Predistortion Technique for Mixer Linearization
Author :
Jeong, Yong-Chae ; Lee, Kyung-Hee ; Park, Sueng-Jun ; Kim, Young ; Kim, Chul-Dong
Author_Institution :
Chonbuk Nat´´l Univ., 664-14, Chonju-si, R.O.Korea. ycjeong@moak.chonbuk.ac.kr
Abstract :
The backed-off method of input power level is generally used for design of highly linear mixer. In this paper, a predistortive mixer design method which has a predistortor in front of the mixer is proposed to compensate the nonlinear characteristics of the mixer. The proposed method improves C/I ratio of the mixer by 22dB (@Po= - 20dBm/tone), with two tones of RF at 1852.5 MHz, 1857.5MHz and LO at 2015MHz.
Keywords :
Design methodology; Frequency conversion; Intermodulation distortion; Local oscillators; Mixers; Predistortion; RF signals; Radio frequency; Signal design; Transceivers;
Conference_Titel :
Microwave Conference, 2000. 30th European
Conference_Location :
Paris, France
DOI :
10.1109/EUMA.2000.338877
