A Compact Load-Modulation Amplifier for Improved Efficiency Next Generation Mobile

Ahmed M. Abdulkhaleq, Maan A. Yahya, Y. Al-Yasir, N. Ojaroudi Parchin, M. Sajedin, Syed M.H. Syed Anera, A. Rayit, I. T.E. Elfergani, R. A. Abd-Alhameed, J. Rodriguez

Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion CynhadleddCyfraniad i gynhadleddadolygiad gan gymheiriaid

1 Dyfyniad (Scopus)

Crynodeb

Current and future mobile communications systems are aimed to increase the achieved efficiency at the backoff and to reduce the required size for the amplifier. A load modulation amplifier targeting 3.4-3.8 GHz is designed, simulated and fabricated to achieved the maximum achievable back-off efficiency from the peak power. The amplifier uses a special technique to implement the load modulation amplifier without using a quarter wave-length transmission line. The measured results showed a 48 dBm peak power with efficiencies of >75 %, >60 %, >55 % and >51 % at 0 dB, 6 dB, 8 dB and 10 dB back-off power respectively for the whole designed bandwidth. The amplifier was tested an LTE modulated signal where the Adjacent Channel Power Ratio (ACPR) was 30 dB and it was improved by utilising a digital predistortion to be 48 dB.

Iaith wreiddiolSaesneg
Teitl2020 50th European Microwave Conference, EuMC 2020
CyhoeddwrInstitute of Electrical and Electronics Engineers Inc.
Tudalennau1091-1094
Nifer y tudalennau4
ISBN (Electronig)9782874870590
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - 12 Ion 2021
Cyhoeddwyd yn allanolIe
Digwyddiad50th European Microwave Conference, EuMC 2020 - Utrecht, Yr Iseldiroedd
Hyd: 12 Jan 202114 Jan 2021

Cyfres gyhoeddiadau

Enw2020 50th European Microwave Conference, EuMC 2020

Cynhadledd

Cynhadledd50th European Microwave Conference, EuMC 2020
Gwlad/TiriogaethYr Iseldiroedd
DinasUtrecht
Cyfnod12/01/2114/01/21

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