Pseudo-Doherty load-modulated balanced amplifier with wide bandwidth and extended power back-off range

Y Cao, K Chen - IEEE Transactions on Microwave Theory and …, 2020 - ieeexplore.ieee.org
This article presents a novel architecture of load-modulated balanced amplifier (LMBA) with
a unique load-modulation characteristic different from any existing LMBAs and Doherty …

High efficiency power amplifiers for modern mobile communications: The load-modulation approach

C Ramella, A Piacibello, R Quaglia, V Camarchia… - Electronics, 2017 - mdpi.com
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 …

Asymmetrical load modulated balanced amplifier with continuum of modulation ratio and dual-octave bandwidth

Y Cao, H Lyu, K Chen - IEEE Transactions on Microwave …, 2020 - ieeexplore.ieee.org
This article presents a new load-modulation power amplifier (PA) architecture—
asymmetrical load-modulated balanced amplifier (ALMBA). It is for the first time discovered …

Design of single-switch inverters for variable resistance/load modulation operation

L Roslaniec, AS Jurkov, A Al Bastami… - IEEE Transactions on …, 2014 - ieeexplore.ieee.org
Single-Switch inverters such as the conventional Class-E inverter are often highly load
sensitive, and maintain zero-voltage switching over only a narrow range of load resistances …

Range-adaptive wireless power transfer using multiloop and tunable matching techniques

J Kim, J Jeong - IEEE Transactions on Industrial Electronics, 2015 - ieeexplore.ieee.org
In this paper, a range-adaptive wireless power transfer (WPT) system is proposed to achieve
high efficiency over a wide range of distances by using tunable impedance matching …

Design of a concurrent dual-band 1.8–2.4-GHz GaN-HEMT Doherty power amplifier

P Saad, P Colantonio, L Piazzon… - … on microwave theory …, 2012 - ieeexplore.ieee.org
In this paper, the design, implementation, and experimental results of a high-efficiency dual-
band GaN-HEMT Doherty power amplifier (DPA) are presented. An extensive discussion …

The linearity-efficiency compromise

PM Lavrador, TR Cunha, PM Cabral… - IEEE Microwave …, 2010 - ieeexplore.ieee.org
The demand on telecom operators for new services and increased data rates has created
difficult requirements for the signal-to-noise-and-distortion ratio of wireless systems …

A 1.8–3.8-GHz power amplifier with 40% efficiency at 8-dB power back-off

P Saad, R Hou, R Hellberg… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
This paper presents a novel power combining architecture, referred to as distributed efficient
power amplifier (DEPA) that mitigates the inherent bandwidth limiting factors in a Doherty …

A 40% PAE frequency-reconfigurable CMOS power amplifier with tunable gate–drain neutralization for 28-GHz 5G radios

SN Ali, P Agarwal, L Renaud, R Molavi… - IEEE Transactions …, 2018 - ieeexplore.ieee.org
In this paper, a high-efficiency frequency-reconfigurable CMOS power amplifier (PA) design
technique is presented at 24 and 28 GHz using integrated tunable neutralization and …

Multi-way lossless outphasing system based on an all-transmission-line combiner

TW Barton, AS Jurkov, PH Pednekar… - IEEE Transactions on …, 2016 - ieeexplore.ieee.org
A lossless power-combining network comprising cascaded transmission-line segments in a
tree structure is introduced for a multi-way outphasing architecture. This architecture …