Ali Roshani
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Ali Roshani has a total of 6 co-authors. Here are the top co-authors by number of shared publications:
- Fawwaz Hazzazi
Department of Electrical Engineering, College of Engineering, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
1 shared publication - Reza Ebrahim Pourian
Department of Computer Engineering, Ker.C., Islamic Azad University, Kermanshah, Iran
1 shared publication - Saeed Roshani
Department of Electrical Engineering, Ker.C., Islamic Azad University, Kermanshah, Iran
1 shared publication - Saeid MahdiAbadi
Department of Electrical Engineering, Ker.C., Islamic Azad University, Kermanshah, Iran
1 shared publication - Salah Ismaeel Yahya
Department of Computer Technology Engineering, College of Technical Engineering, Al-Hadba University, Mosul, Iraq
1 shared publication - Sobhan Roshani
Department of Electrical Engineering, Ker.C., Islamic Azad Universityhttps://ror.org/05sehyt57, Kermanshah, Iran
1 shared publication
Latest Publications
- Open Access
- 17 July 2026
- Published by Koya University in ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY
- Vol. 14 (2) , 40-52
A 5G Doherty Power Amplifier Design Using Two-Section Impedance Transfer Networks
This paper introduces a simulation-based design study of a high-performance 2.6 GHz Doherty power amplifier (DPA) designed for 5G New Radio n7 and n38 frequency band applications. The proposed DPA incorporates a branch-line coupler, replacing conventional impedance inverter and impedance transformer networks. Furthermore, an innovative compact two-section impedance matching network is incorporated in the amplifier structure to reduce size and improve performance. This novel approach results in superior performance, particularly at high output power levels. A class-AB amplifier serves as the main stage, whereas a class-C amplifier functions as the auxiliary stage, ensuring efficient power utilization. Operating at 2.6 GHz, the proposed DPA demonstrates a drain efficiency of 45% and a maximum gain of 15 dB. In comparison with a typical DPA, the proposed design occupies 75% of the size, which shows a size reduction of 25%.
- 17 July 2026
- Published by Koya University in ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY
- Vol. 14 (2) , 40-52
Open AccessA 5G Doherty Power Amplifier Design Using Two-Section Impedance Transfer Networks
This paper introduces a simulation-based design study of a high-performance 2.6 GHz Doherty power amplifier (DPA) designed for 5G New Radio n7 and n38 frequency band applications. The proposed DPA incorporates a branch-line coupler, replacing conventional impedance inverter and impedance transformer networks. Furthermore, an innovative compact two-section impedance matching network is incorporated in the amplifier structure to reduce size and improve performance. This novel approach results in superior performance, particularly at high output power levels. A class-AB amplifier serves as the main stage, whereas a class-C amplifier functions as the auxiliary stage, ensuring efficient power utilization. Operating at 2.6 GHz, the proposed DPA demonstrates a drain efficiency of 45% and a maximum gain of 15 dB. In comparison with a typical DPA, the proposed design occupies 75% of the size, which shows a size reduction of 25%.