Title :
A high linearity, image/LO-rejection I/Q up-conversion mixer for 5G cellular communications
Author :
Chul Woo Byeon;Jeong Ho Lee;Dae Young Lee;Mee-Ran Kim;Ju Ho Son
Author_Institution :
Department of Electronic Engineering, Wonkwang University, Iksan, Korea, Rep. of
Abstract :
A high linearity, high image/LO-rejection in-phase/quadrature (I/Q) direct up-conversion mixer for 5G cellular communications is designed and implemented in 65nm CMOS. The proposed chip is implemented with quadrature LO generator and LO buffer amplifiers, and employs a complementary derivative superposition (DS) technique with pre-distortion for high linearity. The symmetric layout enhances the image/LO-rejection. The proposed mixer achieves the output 1-dB compression point of 2dBm and output third-order intercept point of 15.7dBm at 27.6GHz while consumes 15mW from 1V power supply. The measured conversion gain is 11.4dB and the measured image rejection ratio and LO leakage are -61dBc and -56dBc, respectively.
Keywords :
"Mixers","CMOS integrated circuits","Radio frequency","Linearity","Generators","Layout","Frequency measurement"
Conference_Titel :
Microwave Integrated Circuits Conference (EuMIC), 2015 10th European
DOI :
10.1109/EuMIC.2015.7345140
