High Efficiency Two-Stage Unbalanced Doherty Power Amplifier for Lte Applications

2013 ◽  
Vol 55 (9) ◽  
pp. 2176-2179 ◽  
Author(s):  
Dong-Hee Jang ◽  
Ji-Yeon Kim ◽  
Jong-Heon Kim
Keyword(s):  
Power Amplifier ◽  
High Efficiency ◽  
Two Stage ◽  
Doherty Power Amplifier

1-Package 500W High Efficiency LDMOS Doherty Power Amplifier

2018 ◽  
Author(s):  
Jean-Christophe Nanan ◽  
Yuanyuan Dong ◽  
Sandra De Meyer ◽  
Damien Scatamacchia
Keyword(s):  
Power Amplifier ◽  
High Efficiency ◽  
Doherty Power Amplifier

scholarly journals A Power Amplifier with Large High-Efficiency Range for 5G Communication

Sensors ◽  
2020 ◽  
Vol 20 (19) ◽  
pp. 5581
Author(s):  
Zhiwei Zhang ◽  
Zhiqun Cheng ◽  
Guohua Liu
Keyword(s):  
Output Power ◽  
Design Process ◽  
Power Amplifier ◽  
High Efficiency ◽  
New Method ◽  
Saturated Output Power ◽  
Doherty Power Amplifier ◽  
5G Communication

This paper presents a new method to design a Doherty power amplifier (DPA) with a large, high-efficiency range for 5G communication. This is through analyzing the drain-to-source capacitance (CDS) of DPAs, and adopting appropriate impedance of the peak device. A closed design process is proposed, to design the extended efficiency range DPA based on derived theories. For validation, a DPA with large efficiency range was designed and fabricated by using two equal devices. The measured results showed that the saturated output power was between 43.4 dBm and 43.7 dBm in the target band. Around 70% saturated drain efficiency is obtained with a gain of greater than 11 dB. Moreover, the obtained drain efficiency is larger than 50% at the 10 dB power back-off, when operating at 3.5 GHz. These superior performances illustrate that the implemented DPA can be applied well in 5G communication.

42% high-efficiency two-stage HBT power-amplifier MMIC for W-CDMA cellular phone systems

2000 ◽  
Vol 48 (12) ◽  
pp. 2567-2572 ◽  
Author(s):  
T. Iwai ◽  
K. Kebayashi ◽  
Y. Nakasha ◽  
T. Miyashita ◽  
S. Ohara ◽  
...  
Keyword(s):  
Power Amplifier ◽  
High Efficiency ◽  
Cellular Phone ◽  
Two Stage
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