Results 11 to 20 of about 128,571 (233)

A Broadband Doherty Power Amplifier for Sub-6GHz 5G Applications

open access: yesIEEE Access, 2023
This paper presents a novel and accurate procedure for designing a Doherty power amplifier (DPA) for wireless systems. The method is based on a systematic approach to designing the matching networks of both Main and Auxiliary devices, which employs an ...
Mohammad Shahmoradi   +4 more
doaj   +2 more sources

Broadband Virtual-Stub Doherty Power Amplifier Using Asymmetric Structure

open access: yesIEEE Access, 2023
The load networks of advanced Doherty power amplifiers (DPAs) have traditionally been designed according to the ABCD parameters. In this paper, design conditions as an impedance transformation condition and an effective electrical length were used to ...
Jaekyung Shin   +11 more
doaj   +2 more sources

Compact Asymmetrical Quasi-MMIC Doherty Power Amplifier [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2023
This paper presents a compact asymmetrical Doherty power amplifier (PA) based on a quasi-MMIC configuration for 5G sub-6 GHz applications. The proposed Doherty PA is composed of commercial GaN HEMTs and several passive components implemented on a silicon
Hong-Sun Yoon   +4 more
doaj   +1 more source

A 28-36 GHz Optimized CMOS Distributed Doherty Power Amplifier with A New Wideband Power Divider Structure [PDF]

open access: yesJournal of Electrical and Computer Engineering Innovations, 2020
Background and Objectives: In this paper, a new design strategy was proposed in order to enhance bandwidth and efficiency of power amplifier.Methods: To realize the introduced design strategy, a power amplifier was designed using TSMC CMOS 0.18um ...
M. Mirzajani Darestani   +2 more
doaj   +1 more source

Theoretical and Experimental Analysis of Reversed Uneven Power Splitting Technique in GaN MMIC Doherty Power Amplifiers

open access: yesIEEE Access, 2023
We present a theoretical and experimental analysis of the use of a reversed uneven power splitting (RUPS) technique for asymmetric Doherty power amplifiers (PAs).
Cheol Ho Kim, Hyeon-June Kim
doaj   +1 more source

Systematic Design Methodology of Broadband Doherty Amplifier Using Unified Matching/Combining Networks With an Application to GaN MMIC Design

open access: yesIEEE Access, 2021
This paper presents a new design methodology for broadband Doherty architecture using the three-port input and output networks technique. The proposed topology was developed to overcome the Doherty power amplifier (DPA) bandwidth limitations.
A. M. Elelimy Abounemra   +6 more
doaj   +1 more source

A Broadband Doherty Power Amplifier With a New Load Modulation Network

open access: yesIEEE Access, 2021
In this paper, we proposed a new load modulation method to improve bandwidth and efficiency at output power back-off (OBO) of the Doherty Power Amplifier (DPA).
Jingchang Nan   +3 more
doaj   +1 more source

Design of a Load Modulated Balanced Amplifier with a Two-Stage Control Power Amplifier [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2023
While an ideal Doherty power amplifier has a linear response, the load modulated balanced amplifier (LMBA) has a compressive response under ideal conditions.
Sagini E. Mochumbe, Youngoo Yang
doaj   +1 more source

Platinum Group Element Traces of CAMP Volcanism Associated With Low‐Latitude Environmental and Biological Disruptions

open access: yesGeophysical Monograph Series, Page 263-304., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jessica H. Whiteside   +3 more
wiley  

+2 more sources

Development Review of Highly Efficient Sequential Power Amplifier with Extended Back-Off Range for Broadband Application

open access: yesEnergies, 2023
Similar to a Doherty power amplifier (DPA), a sequential power amplifier (SPA) is mainly composed of a main amplifier, an auxiliary amplifier and a combiner.
Keyuan Yang   +5 more
doaj   +1 more source

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