Results 21 to 30 of about 10,285 (303)

A 130 to 160 GHz broadband power amplifier with binary power splitting topology [PDF]

open access: yes, 2022
S.442-444The range of radar and communication systems working in the atmospheric window around 140 GHz strongly is limited by the output power of the transmit amplifier. To allow for long range application, a broadband power amplifier with 145 GHz center
Diebold, S.   +7 more
core   +1 more source

Design and Stability Analysis Techniques for Switching-Mode Nonlinear Circuits: Power Amplifiers and Oscillators [PDF]

open access: yes, 2006
A design technique for kW level switching mode power amplifiers is presented. Several push pull pairs, independently tuned to Class E/Fodd, are combined by a distributed active transformer.
Jeon, Sanggeun
core   +1 more source

A Maximum Efficiency-86% Hybrid Power Modulator for 5G New Radio(NR) Applications

open access: yesApplied Sciences, 2022
A hybrid power modulator is presented for the radio frequency (RF) power amplifiers of 5th generation mobile communication technology (5G) new radio (NR) applications. A hybrid power modulator utilizing a two-level switching converter and a broadband and
Xingli Cui   +4 more
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

RF-SOI Low-Noise Amplifier Using RC Feedback and Series Inductive-Peaking Techniques for 5G New Radio Application

open access: yesSensors, 2023
This paper presents a low-noise amplifier (LNA) with an integrated input and output matching network designed using RF-SOI technology. This LNA was designed with a resistive feedback topology and an inductive peaking technology to provide 600 MHz of ...
Min-Su Kim, Sang-Sun Yoo
doaj   +1 more source

A high-gain cell enhancer [PDF]

open access: yes, 1992
A cell enhancer that offers a combination of high-grain and high output power with extremely good linearity is described. The prototype repeater offers an active gain of at least 100 dB over a bandwidth of several megahertz.
Slingsby, WT, McGeehan, JP
core   +1 more source

Broadband Class-J GaN Doherty Power Amplifier [PDF]

open access: yes, 2022
This paper presents a broadband 3 GHz–3.7GHz class-J Doherty power amplifier exploiting second harmonic tuning in the output network. Furthermore, the output impedance inverter is eliminated and its effect is embedded in the main device’s output matching
Motahhareh Estebsari   +6 more
core   +1 more source

Extended Inverse Class-F Continuum for Designing Broadband Power Amplifier [PDF]

open access: yes, 2021
The impedance space of the continuous inverse class-F power amplifier (PA) is extended in this paper. Traditionally, for extending impedance space, a reactive term is introduced into the current waveform of the continuous inverse class-F PA.
Shi, Weimin, Gan, Decheng
core   +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

A Compact Output Power Combiner for Broadband Doherty Power Amplifiers [PDF]

open access: yes, 2019
A novel compact output power combiner for broadband Doherty Power Amplifiers is proposed in this paper. The proposed output power combiner avoids the use of quarter-wave impedance transformers as they are sizable and work over narrow bandwidths. Instead,
Mona Zaghloul, Ali Darwish, Ken McKnight
core   +1 more source

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