Design and linearization of concurrent dual-band Doherty power amplifier with frequency-dependent power ranges

W Chen, SA Bassam, X Li, Y Liu… - IEEE transactions on …, 2011 - ieeexplore.ieee.org
A design methodology for a concurrent dual-band Doherty power amplifier (PA) with
frequency-dependent backoff power ranges is presented in this paper. Based on a dual …

Design methodology for dual-band Doherty power amplifier with performance enhancement using dual-band offset lines

K Rawat, FM Ghannouchi - IEEE Transactions on Industrial …, 2011 - ieeexplore.ieee.org
This paper proposes a design methodology for dual-band Doherty power amplifier (DPA)
with performance enhancement using dual-band phase offset lines. In the proposed …

Linearization of concurrent dual-band power amplifier based on 2D-DPD technique

SA Bassam, W Chen, M Helaoui… - IEEE Microwave and …, 2011 - ieeexplore.ieee.org
This letter reports a two-dimensional digital predistortion technique to compensate for the
nonlinearity of a concurrent dual band PA. Two different multi-carrier WCDMA signals with …

Compact dual-band branch-line and rat-race couplers with stepped coupled-line

Y Liu, W Chen, Z Feng - 2011 China-Japan Joint Microwave …, 2011 - ieeexplore.ieee.org
This study constructs stepped-impedance coupled-lines for a dual-band coupler design over
a frequency ratio range of 1.8-3.0. The proposed structure demonstrates good dual-band …

Doherty power amplifiers in software radio systems

FM Ghannouchi, K Rawat - 2011 XXXth URSI General …, 2011 - ieeexplore.ieee.org
Power amplification in software defined radio needs reconfigurabilty as well as optimum
performance in terms of linearity and efficiency to handle different modulation standards …

A highly efficient dual-band inverse class-E power amplifier with double CRLH-TLs for LTE and WCDMA applications

MW Lee, SH Kam, YH Jeong - Asia-Pacific Microwave …, 2011 - ieeexplore.ieee.org
This paper presents a highly efficient dual-band inverse class-E power amplifier using
double composite right/left handed transmission lines (CRLH-TLs). The double CRLH-TLs …