Results 141 to 150 of about 128,571 (233)

A review of Doherty power amplifier and load modulated balanced amplifier for 5G technology

International journal of circuit theory and applications, 2023
In this paper, functionality of the Doherty power amplifiers (DPAs) along with their design constraints such as DPA combining techniques are reviewed.
Saeedeh Makhsuci, Seyedeh Masoumeh Navidi, M. Sanduleanu, Mohammed Ismail   +3 more
semanticscholar   +1 more source

A Millimeter-Wave Three-Way Doherty Power Amplifier for 5G NR OFDM

IEEE Journal of Solid-State Circuits, 2023
This article presents a millimeter-wave (mmWave) three-way Doherty output network and its silicon implementation at 38 GHz for 5G new radio (NR) orthogonal frequency-division multiplexing (OFDM).
Xiaohan Zhang, Sensen Li, Daquan Huang, T. Chi   +3 more
semanticscholar   +1 more source

Broadband High-Efficiency Dual-Mode Doherty Power Amplifier Using Hybrid F/F–1 Continuous-Mode Technology

IEEE Transactions on Circuits and Systems Part 1: Regular Papers, 2023
A design strategy to enhance the efficiency of the dual-mode Doherty power amplifier (DPA) is proposed. The continuous multiple harmonic regulation approach is adopted to realize high efficiency of dual-mode DPA in a wide operating frequency band.
Yiyang Tang, W. Feng, X. Zhou, Weiwei Wang, L. Gu, Q. Xue, W. Che   +6 more
semanticscholar   +1 more source

An Efficient Broadband Symmetrical Doherty Power Amplifier With Extended Back-Off Range

IEEE Transactions on Circuits and Systems - II - Express Briefs, 2023
In this brief, a symmetrical Doherty power amplifier (DPA) which exhibits enhanced efficiency, bandwidth and output power back-off range by phase compensation, is proposed.
J. Zhang, S. Zheng, Nan Yang
semanticscholar   +1 more source

A Compact and Broadband Doherty Power Amplifier Without Post-Matching Network

IEEE Transactions on Circuits and Systems - II - Express Briefs, 2023
Post-matching network (PMN) dominates broadband Doherty power amplifier (DPA) design, but at the cost of large footprint. This brief presents a PMN-free, compact and broadband DPA based on dual-mode impedance transformer (IT) which can simultaneously ...
Liheng Zhou, X. Zhou, W. Chan
semanticscholar   +1 more source

Load Mismatch Compensation of Doherty Power Amplifier Using Dual-Input and Mode Reconfiguration Techniques

IEEE Transactions on Circuits and Systems Part 1: Regular Papers, 2023
Doherty power amplifier (DPA) has shown great potentials in wireless communication systems. However, the output power and efficiency of a DPA are very susceptible to load mismatch.
W. Shi, Xiaolong Li, Yong Gao, Chunyu Hu, Zhijiang Dai, Jingzhou Pang, Mingyu Li   +6 more
semanticscholar   +1 more source

A Doherty Power Amplifier Based on AM-AM/PM Cancellation Combining Network Synthesized by Back-Off Complex Load Impedance

IEEE Microwave and Wireless Technology Letters, 2023
This letter proposes a general design method for a linear Doherty power amplifier (DPA). With this method, the expanded or compressed amplitude-to-amplitude (AM-AM) and amplitude-to-phase (AM-PM) distortions of carrier power amplifier (PA) can be ...
Z. Xiao, F. You, Ce Shen, Qian He, Bo Pang, Junfu Guo, Peng Hao, Yaojia Fan, Minxian Song, Chuan Li, Songbai He   +10 more
semanticscholar   +1 more source

Simplified All-in-One Load Network of the Broadband Doherty Power Amplifier

IEEE transactions on microwave theory and techniques
A simplified all-in-one load network of Doherty power amplifier (DPA) was proposed for extended back-off range and broadband operation in this study. Although the proposed load network was simplified to just have a postmatching network (PMN) and compact ...
Yifei Chen, Woojin Choi, Jaekyung Shin, Hyeongjin Jeon, Sooncheol Bae, Soohyun Bin, Young Chan Choi, Hansik Oh, Hyunuk Kang, Kang‐Yoon Lee, Keum Cheol Hwang, Youngoo Yang   +11 more
semanticscholar   +1 more source

An Inverted Doherty Power Amplifier Insensitive to Load Variation With an Embedded Impedance Sensor in Its Output Power-Combining Network

IEEE transactions on microwave theory and techniques, 2023
This article presents an inverted Doherty power amplifier (IDPA) made load insensitive up to 2:1 voltage standing wave ratio (VSWR) across its fractional bandwidth with a very compact wideband impedance sensor embedded in its output power-combining ...
G. Singh, H. Nemati, M. Alavi, L. D. de Vreede   +3 more
semanticscholar   +1 more source

5.4 A 22nm FDSOI CMOS-Based Compact 3-Stack Doherty Power Amplifier with a Stacked OPA-Based Bias Scheme Achieving >16.5dBm Pavg for 5G FR2 Applications

IEEE International Solid-State Circuits Conference
The increasing demand for wireless communication has generated significant interest in the millimeter-wave (mm-wave) band. In this frequency range, phased-array systems are crucial for sustaining communication performance despite high propagation loss ...
Jooseok Lee, Hansik Oh, Seungjae Baek, Seungwon Park, Dongsoo Lee, S. Jeon, Taewan Kim, Joonho Jung, Sung-Gi Yang   +8 more
semanticscholar   +1 more source