Results 51 to 60 of about 35,890,141 (157)

Fiber link design considerations for cloud-Radio Access Networks [PDF]

, 2014
Analog radio over fiber (RoF) links may offer advantages for cloud-Radio Access Networks in terms of component cost, but the behavior of the distortion with large numbers of subcarriers needs to be understood. In this paper, this is presented in terms of
Luis C. Vieira, Vieira, Luis C., Philippos Assimakopoulos, Sklikas, Pavlos, Gomes, Nathan J., Assimakopoulos, Philippos, Nathan J. Gomes, Pavlos Sklikas   +7 more
core   +1 more source

Distortion improvement of power amplifiers with digital predistortion

, 2009
This paper presents an optimized digital predistortion (DPD) technique based on iterative injecting of distortion components into the baseband signal.
Budimir, D., Bondar, D.
core   +1 more source

TCN-DPD: Parameter-Efficient Temporal Convolutional Networks for Wideband Digital Predistortion

2025 IEEE/MTT-S International Microwave Symposium - IMS 2025
Digital predistortion (DPD) is essential for mitigating nonlinearity in RF power amplifiers, particularly for wideband applications. This paper presents TCN-DPD, a parameter-efficient architecture based on temporal convolutional networks, integrating noncausal dilated convolutions with optimized activation functions.
Duan, Huanqiang, Versluis, Manno, Chen, Qinyu, de Vreede, Leo C. N., Gao, Chang   +4 more
openaire   +3 more sources

Digital signal processing of communication signals with Python: DPD [PDF]

, 2021
This paper demonstrates the opportunities that the new AI sprovide for DPD (Digital Predistortion) in RFPA. The project is established on the AD9361 Test bench which was programmed and simulated using MATLAB.
Samsuzzaman, Md
core   +2 more sources

Digital Predistortion of Power Amplifiers for Quantum Computing

Electronics Letters, Volume 62, Issue 1, January/December 2026.
This letter applies digital predistortion (DPD) to linearize the power amplifier in microwave quantum control signal generators. By compensating for nonlinearities and memory effects, DPD reduces the mean qubit gate infidelity by approximately one order of magnitude without reducing the output power.
Marvin Jaeger, Bartosz Tegowski, Georg Frederik Riemschneider, Alexander Koelpin   +3 more
wiley   +1 more source

Broadband GaN Doherty Power Amplifier With Integrated Unequal Wilkinson and λ/4 Phase Network for Midband 5G

International Journal of RF and Microwave Computer-Aided Engineering, Volume 2026, Issue 1, 2026.
This paper presents the design and implementation of a high‐efficiency two‐way Doherty power amplifier (DPA) for sub‐6 GHz 5G New Radio (NR) applications, specifically targeting the n78 band (3.3–3.8 GHz). The proposed gallium nitride (GaN)‐based DPA delivers a peak output power of 42.5 dBm, a gain of 13.3 dB, and a maximum power‐added efficiency (PAE)
Tugba Haykir Ergin, Ismail Sisman, Palandoken Merih   +2 more
wiley   +1 more source

Advanced digital predistortion of power amplifiers for mobile and wireless communications [PDF]

, 2009
This research work focuses on improving the performances of digital predistorters while maintaining low computational complexity for mobile and wireless communication systems.
Bondar, D.
core   +1 more source

Digital Predistorter Implementation for Wideband Power Amplifiers in New Generation Wireless Systems Based on a Low‐Complexity Volterra Series Model

International Journal of Numerical Modelling: Electronic Networks, Devices and Fields, Volume 38, Issue 5, September/October 2025.
ABSTRACT In this article, we provide a novel, expanded, and adapted pruning approach for the Simplified Volterra Series (SVS) model that makes it applicable to a wider range of Power Amplifiers (PAs). The proposed Modified SVS (MSVS) model is then applied in a Digital Predistortion (DPD) architecture to linearize a 25 W Gallium Nitride (GaN) RF PA.
Haithem Rezgui, Ghalid Abib, Fatma Rouissi, Adel Ghazel   +3 more
wiley   +1 more source

Performance Analysis of MIMO Links With Non‐Isolated Active Antenna Arrays

Microwave and Optical Technology Letters, Volume 67, Issue 8, August 2025.
ABSTRACT In this paper, we analyze the performance of non‐isolated active arrays in a multiple‐input multiple‐output (MIMO) system. When ferromagnetic‐type isolators are removed in the transmitter (Tx) chains, the antenna mutual coupling will dynamically change the load impedance seen by the power amplifiers (PAs) at their outputs, which subsequently ...
Jiayu Hou, Haijun Fan, Yuan Ding, George Goussetis   +3 more
wiley   +1 more source

A System Approach for Efficiency Enhancement and Linearization Technique of Dual-Input Doherty Power Amplifier

IEEE Journal of Microwaves, 2023
In this paper, we propose an efficient system approach to improve the power efficiency of dual-input Doherty power amplifier (DIDPA) with maintaining its linearity level. An auto-tuning process based on a hybrid heuristic search control (HHSC) is applied
Chouaib Kantana, Mouchacine Benosman, Rui Ma, Yuji Komatsuzaki   +3 more
doaj   +1 more source