Title :
High efficiency broadband multi-Mode transferred power amplifier for LTE and 3G applications
Author :
Chang Liu ; Xiao-Wei Zhu ; Yin-Jing Sun ; Jin Xia ; Lei Zhang ; Fan Meng
Author_Institution :
State Key Lab. of Millimeter Waves, Southeast Univ., Nanjing, China
Abstract :
This paper proposes multi-mode transferred power amplifier design. Several discrete frequency points, along with their second and third harmonics are controlled simultaneously by a special output matching network in PA. It allows the PA to transfer its mode to different typical high efficiency classes in these deliberately selected frequencies, which are referred to LTE and 3G systems. The measurement results show high efficiency (>72%) in these points, including 1.9GHz, 2.0GHz and 2.6GHz. Also, the PA shows broadband characters, achieving 58%-76% drain efficiency at 1.9-2.9 GHz, and > 10W output power, 14.7-16.9dB gain at 1.9-2.7 GHz.
Keywords :
3G mobile communication; Long Term Evolution; UHF power amplifiers; wideband amplifiers; 3G application; LTE application; PA; discrete frequency points; drain efficiency; efficiency 58 percent to 76 percent; frequency 1.9 GHz to 2.9 GHz; gain 14.7 dB to 16.9 dB; high-efficiency broadband multimode transferred power amplifier; high-efficiency class; multimode-transferred power amplifier design; output matching network; power 10 W; second harmonics; third harmonics; Clocks; Harmonic analysis; Impedance; Radio frequency; Topology; Wireless communication; Broadband; LTE; harmonics; high-efficiency; mode-transfer; power amplifiers;
Conference_Titel :
Microwave Symposium (IMS), 2014 IEEE MTT-S International
Conference_Location :
Tampa, FL
DOI :
10.1109/MWSYM.2014.6848640
