Results 111 to 120 of about 1,717 (209)

Towards generalized Doherty power amplifier design for multiband operation

, 2015
This paper presents a new variant of broadband Doherty power amplifier that employs a novel output combiner. A new parameter ∝ is introduced to permit a generalized analysis of the recently reported Parallel Doherty power amplifier (PDPA),and hence offer
Fusco, Vincent; id_orcid, Barakat, Ayman, Thian, Mury   +2 more
core   +1 more source

The Doherty power amplifier

, 2014
The Doherty power amplifier (DPA) is hereby presented and described starting from the basic idea up to more advanced and state-of-art results and guidelines. The DPA historical aspect is also covered, describing the timeline of its evolution.
GIANNINI, FRANCO, Luca Piazzon, Colantonio, P, GIOFRE', ROCCO, Rocco Giofrè, Giofrè, R, Giannini, F, PIAZZON, LUCA, Paolo Colantonio, COLANTONIO, PAOLO, Piazzon, L, Franco Giannini   +11 more
core   +1 more source

Performance Enhancement of Dual-Input Frequency-Periodic Load Modulated Power Amplifier at 1–5.7-GHz Bandwidth With Co-Designed Biasing Network

IEEE Access
This study proposes a novel dual input power amplifier (PA) with a frequency-periodic load modulated output matching network supported by a broadband biasing network.
Takuma Torii, Yuji Komatsuzaki, Shintaro Shinjo, Ryo Ishikawa   +3 more
doaj   +1 more source

Highly Efficient and Linearity-Enhanced S-band Doherty Power Amplifier [PDF]

This work presents the design and characterization of a hybrid Doherty power amplifier for S band aiming at enhancing linearity near saturation while maintaining high efficiency.
Bartolotti, Giulia, Piacibello, Anna, Camarchia, Vittorio, Zhang, Zhifan   +3 more
core   +1 more source

Design and simulate a doherty power amplifier using GaAs technology for telecommunication applications

, 2019
In this paper, a Doherty power amplifier was designed and simulated at 2.4 GHz central frequency which has high efficiency. A Doherty power amplifier is a way to increase the efficiency in the power amplifiers.
Barmala, Ehsan
core   +1 more source

Design of a Broadband Continuous-Mode Doherty Power Amplifier Using a High-Order Filter Integrated Matching Network

Applied Sciences
To meet the demand for high efficiency in modern broadband communication systems, this paper presents a novel continuous-mode Doherty power amplifier design method based on integrated high-order filter prototypes.
Peng Tao, Hui Lv, Benyuan Chen
doaj   +1 more source

FPGA-based digital predistortion of a 3.5 GHz GaN Doherty power amplifier

, 2014
In this paper, a baseband predistortion scheme is applied and implemented into real-time FPGA to linearize a Doherty power amplifier for wireless applications.
V. Camarchia, T. Jiang, Quaglia, Roberto, Camarchia, Vittorio, R. Quaglia, Jiang, Tao, M. Pirola, Pirola, Marco   +7 more
core   +1 more source

A State-of-the-Art Review on CMOS Radio Frequency Power Amplifiers for Wireless Communication Systems. [PDF]

Micromachines (Basel), 2023
Hamid SS, Mariappan S, Rajendran J, Rawat AS, Rhaffor NA, Kumar N, Nathan A, Yarman BS.   +7 more
europepmc   +1 more source

Study And Construction On Memoryless Nonlinear Model Of Doherty Amplifier

, 2014
OFDM technology has become the core technology of DTMB system. The high Doherty power amplifier can effectively improve the peak-average power ratio of OFDM system, but with poor linear performance.
Su Kaixiong, Yan Lirong, Huang Xiyuan, Chen Jun   +3 more
core   +1 more source

IEEE 802.11b/g High Efficiency CMOS Power Amplifier with an Integrated Adaptive Bias Circuit

, 2007
本論文探討以UMC CMOS 0.18um RF製程來實現Doherty PA電路架構，以提高6dB-backoff 時的功率輸出效率。經由S參數的量測，在2.4GHz的頻段中，有10.6dB的小訊號增益。該電路的最大輸出功率與P1dB分別為22.6dB與21.4dBm。此時PAE最高可達33.6%，於P1dB點為32.6%，在6dB-backoff時仍高達21.1%的高效率值。由於晶片內部不需採用螺旋電感，其晶片面積僅666*999 µm2。The Doherty power ...
劉致元, Liu, Zhi-Yuan
core