Results 21 to 30 of about 134,248 (260)
A Novel Integrated Doherty Power Amplifier at 28GHz [PDF]
, 2021 This thesis proposes a novel implementation of a Doherty power amplifier as a means to improve backed off power added efficiency when compared to a class B PA. The proposed Doherty output combiner boasts a 28.5% fractional bandwidth at a center frequency
Korba, Brendan Joseph
core +2 more sources
IEEE Access, 2023 This paper presents a 2.8-3.8 GHz broadband 2-stage fully differential Doherty power amplifier using direct interstage power division based on a 2- $\mu \text{m}$ InGaP/GaAs HBT process for 5G new radio handset applications.
Hansik Oh +6 more
doaj +1 more source
Design of a Doherty Power Amplifier for GSM Systems
Tikrit Journal of Engineering Sciences, 2011 This paper presents the design and analysis of Doherty power amplifier. The Doherty amplifier is used in a base station for mobile system because of its high efficiency.
Saad Wasmi Osman Luhaib
doaj +1 more source
Design of Power Efficient Power Amplifier for B3G Base Stations. [PDF]
, 2010 yesFourth generation systems require the use of both amplitude and phase modulation to efficiently utilize the available spectrum and to obtain high data rates, hence imposing stringent requirements on the power amplifier in ...
Abd-Alhameed, Raed A. +3 more
core +1 more source
A 4W Doherty power amplifier in GaN MMIC technology for 15GHz applications [PDF]
, 2017 This letter presents an integrated Doherty power amplifier (PA) in 0.25- μm GaN on SiC process. Designed for 15-GHz point-to-point radios, the PA exhibits an output power of 36 ± 0.5 dBm between 13.7 and 15.3 GHz, while at 14.6 GHz, it shows a 6-dB ...
Camarchia, Vittorio +4 more
core +3 more sources
Linearization of dual-input Doherty power amplifiers [PDF]
, 2014 This paper studies the linearity of dual-input Doherty power amplifiers. We propose a linearization scheme that uses a combination of an efficiency-optimized static splitter and a vector-switched digital predistorter.
Cahuana, Jessica Chani +4 more
core +1 more source
The Doherty Power Amplifier with pre-amplification stage
Ingeniería Investigación y Desarrollo, 2015 This paper shows the general concept of the Doherty power amplifier, highlighting its superiority, in terms of average efficiency, regarding to single-stage power amplifiers.
Jonathan Javier Tinjacá-Soler +3 more
doaj +1 more source
High efficiency power amplifiers for modern mobile communications: The load-modulation approach [PDF]
, 2017 Modern mobile communication signals require power amplifiers able to maintain very high efficiency in a wide range of output power levels, which is a major issue for classical power amplifier architectures.
Camarchia, Vittorio +4 more
core +4 more sources
Review of Efficiency CMOS Class AB Power Amplifier Topology in Gigahertz Frequencies
ASM Science Journal, 2022 This paper reviewed the efficiency of CMOS class AB power amplifier topology especially in gigahertz frequencies. CMOS class AB power amplifier is a compromise between class A and class B in terms of linearity and efficiency between 50% to 78.5%. However,
Rohana Sapawi
doaj +1 more source
Design of a 87% fractional bandwidth Doherty Power Amplifier supported by a simplified bandwidth estimation method [PDF]
, 2018 This paper presents a novel technique for the design of broadband Doherty power amplifiers (DPAs), supported by a simplified approach for the initial bandwidth estimation that requires linear simulations only.
Camarchia, Vittorio +3 more
core +3 more sources