Results 41 to 50 of about 134,248 (260)
A load modulated balanced amplifier for telecom applications [PDF]
, 2018 This paper presents the design and characterization of a load modulated balanced amplifier for telecom base station applications adopting a novel mode of operation.
Cripps, Steve, Quaglia, Roberto
core +2 more sources
A 2.14GHz Driver-stage Power Amplifier for Doherty Power Amplifier
DEStech Transactions on Computer Science and Engineering, 2017 This paper presented a high power amplifier drive a Doherty power amplifier. By using computer software to design and test instrument to adjust, the result shows the driver-stage power amplifier that is made of the MRF8S21100H from NXP company meet the 15dB gain, and 42% power added-efficiency (PAE) at the maximum output power.
XIN ZHANG, BIN WANG, ZICHENG XIONG
openaire +2 more sources
Spectral Efficiency and Energy Efficiency of OFDM Systems: Impact of Power Amplifiers and Countermeasures [PDF]
, 2013 In wireless communication systems, the nonlinear effect and inefficiency of power amplifier (PA) have posed practical challenges for system designs to achieve high spectral efficiency (SE) and energy efficiency (EE).
Ho, Chin Keong +2 more
core +1 more source
IEEE transactions on microwave theory and techniquesIn this article, a linearity-improved millimeter-wave (mm-wave) gallium nitride (GaN) monolithic microwave integrated circuit (MMIC) Doherty power amplifier (DPA) is presented for fifth-generation new radio (5G-NR) FR2 applications.
Ruijia Liu, Lin Qi, A. Zhu
semanticscholar +1 more source
A 79 GHz SiGe Doherty Power Amplifier Suitable for Next-Generation Automotive Radar
IEEE Journal of MicrowavesThe number of environment-detecting sensors inside cars continuously increases, to enable failsafe autonomous driving. With more sensors, the probability of performance degrading interferences increases.
Jan Schoepfel +4 more
doaj +1 more source
Analysis and Design of CMOS Doherty Power Amplifier Based on Voltage Combining Method
IEEE Access, 2017 The impedance at the each input terminal of paper presents a voltage combining Doherty power amplifier in a standard 180-nm CMOS process. This Doherty PA uses a series combining transformer (SCT) to combine the output power and realize the load ...
Chenxi Zhao +3 more
doaj +1 more source
IEEE Access, 2023 This paper presents a new compact load network for Doherty power amplifiers (DPAs) with only two matching networks, such as an output matching network of the carrier amplifier, and the post-matching network (PMN), even in the presence of parasitic ...
Yifei Chen +11 more
doaj +1 more source
Broadband Doherty Power Amplifier With Transferable Continuous Mode
IEEE Access, 2020 In this paper, in-band continuous mode transferring (CMT) method is presented for designing broadband Doherty power amplifier (DPA). Specifically, transferable continuous mode, transferring between class-J continuum to class-F-1 continuum, is introduced ...
Decheng Gan +4 more
doaj +1 more source
New Load Modulation Combiner Having a Capability of Back-Off Control for Doherty Power Amplifiers
IEEE Access, 2023 A new load modulation combiner (LMC) having the capability of back-off control is proposed for a Doherty power amplifier (DPA). The proposed LMC consists of two transmission lines tied at the combining node, and a shunt element across the other ends of ...
Yifei Chen +9 more
doaj +1 more source
A High-Efficiency GaN Doherty Power Amplifier with Blended Class-EF Mode and Load-Pull Technique [PDF]
, 2017 This paper presents a new Doherty power amplifier (DPA) configuration that employs high-efficiency switched-mode Class EF as its Main and Auxiliary cells. A blended approach is proposed to design the load network of the PA cells, in which the fundamental-
Barakat, Ayman +2 more
core +1 more source