Continuous-mode hybrid asymmetrical load-modulated balanced amplifier with three-way modulation and multi-band reconfigurability

Y Cao, H Lyu, K Chen - … Transactions on Circuits and Systems I …, 2021 - ieeexplore.ieee.org
This article introduces a novel high-order load modulation power amplifier (PA) architecture,
ie, continuous-mode hybrid asymmetric load modulated balanced amplifier (H-ALMBA). The …

Broadband three-stage pseudoload modulated balanced amplifier with power back-off efficiency enhancement

J Sun, F Lin, H Sun, W Chen… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
This article presents a broadband three-stage pseudoload modulated balanced amplifier (P-
LMBA) with enhanced power back-off efficiency. Unlike the conventional LMBAs, one of the …

Divisional load-modulated balanced amplifier with extended dynamic power range

W Shi, X Li, C Hu, T Cai, G Naah, Z Dai… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
With the prevalence of complex modulated signals, it is of utmost significance to research
the extension of the dynamic power range of radio frequency (RF) power amplifiers (PAs) …

Inverted sequential load-modulated balanced amplifier for extending dynamic power range over wide bandwidth

J Liu, W Shi, C Hu, R Yang - AEU-International Journal of Electronics and …, 2024 - Elsevier
This paper propose an inverted sequential load-modulated balanced amplifier (ISLMBA) for
extending the dynamic power range of a power amplifier (PA) over a wide bandwidth. The …

Extension of Output Backoff Range in Three-Stage Load Modulated Balanced Amplifier Using Asymmetric Coupling and Non- Load

J Xie, KKM Cheng, X Fang, P Yu - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
In this article, the extension of the output backoff (OBO) range of the load-modulated
balanced amplifier (LMBA) is reported by manipulating the asymmetric output coupling and …

A 40-GHz load modulated balanced power amplifier using unequal power splitter and phase compensation network in 45-nm SOI CMOS

L Chen, L Chen, Z Ge, Y Sun… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
In this work, a ten-way power-combined power amplifier is designed using a load modulated
balanced amplifier (LMBA)-based architecture. To provide the required magnitude and …

Load-modulated balanced amplifier: From first invention to recent development

R Quaglia, J Pang, SC Cripps… - IEEE Microwave …, 2022 - ieeexplore.ieee.org
The RF power amplifier (PA) is a unit in wireless transmitters that strengthens the signal to
combat losses in transmission by converting dc electric power to the added RF output …

Load and frequency independent Doherty power amplifier back-off extension

F Dietrich, MD Wei, E Heidebrecht… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
This article presents the principle of extending the back-off efficiency of a three-stage
Doherty power amplifier (DPA) by substituting the second load modulation stage using a …

A 6-/12-dB back-off multi-mode GaN MMIC Doherty power amplifier for 5G applications

H Oh, W Choi, J Shin, Y Chen, H Kang… - 2023 IEEE/MTT-S …, 2023 - ieeexplore.ieee.org
This paper presents a multi-mode Doherty power amplifier (M-DPA) MMIC. By arranging the
turn-on transitions of four parallel amplifiers, two carrier and two peaking amplifiers (2C2P) …

A GaN MMIC load-modulated balanced amplifier with modified output coupler for efficiency enhancement over a larger power back-off range

ZM Zhao, XW Zhu, J Xia, RJ Liu, P Chen… - … on Circuits and …, 2023 - ieeexplore.ieee.org
This brief firstly presents a monolithically microwave integrated circuit (MMIC) load-
modulated balanced amplifier (LMBA) developed in 0.15 GaN process. In this brief, the …