Results 1 to 10 of about 73,477 (301)

Multi-Objective Optimization Design of Doherty Power Amplifier Circuits Based on Non-Dominated Sorting Genetic Algorithm-II [PDF]

open access: yesMicromachines
Conventional optimization algorithms face challenges such as lengthy computation times, premature termination at non-convergent points, and the generation of local optima when addressing multi-objective optimization. A multi-objective optimization method
Hanbin Qu   +3 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 Wideband Doherty Combiner with Phase Variation Compensation Using LTCC Applicable for High Power Transmission [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2022
In this paper, we propose a small-sized Doherty combiner with phase variation compensation using low temperature co-fired ceramic (LTCC) substrate.
Youna Jang   +4 more
doaj   +1 more source

A Compact CMOS Broadband Bidirectional Digital Transceiver Frontend With Capacitor Bank and Transformer Matching Network Reuse

open access: yesIEEE Access, 2022
This article presents a fully integrated bidirectional class-G digital Doherty switched capacitor transmitter (TX) and N-path Quadrature receiver (RX) in CMOS. Through sharing on-chip capacitor banks, typically occupying a major portion of the digital TX
Jeongseok Lee   +3 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

Review of Irish Liberty, British Democracy: The Third Home Rule Crisis, 1909-14, by James Doherty

open access: yesReview of Irish Studies in Europe, 2021
Review of Irish Liberty, British Democracy: The Third Home Rule Crisis, 1909-14, by James Doherty (Cork: Cork University Press, 2019) ISBN: 9781782053606,320pp. €39.00 (hardback).
Angus Mitchell
doaj   +3 more sources

A Doherty Power Amplifier for Ultrasound Instrumentation

open access: yesSensors, 2023
The ultrasound instrumentation uses linear power amplifiers with low power efficiency, generating unwanted heat and resulting in the deterioration of the echo signal quality of measured targets.
Hojong Choi
doaj   +1 more source

The Doherty Power Amplifier with pre-amplification stage

open access: yesIngeniería 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

A New Doherty Combiner with Wide Bandwidth for Magnitude and Phase Balance Compensation [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2023
This paper proposes a novel Doherty combiner that uses a series and parallel resonant circuit for wideband. Unlike conventional combiners, the aim of the proposed combiners is to extend bandwidth for not only the magnitude bandwidth, but also phase ...
Youna Jang   +4 more
doaj   +1 more source

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