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A 70-W Asymmetrical Doherty Power Amplifier for 5G Base Stations
Abdulkhaleq, Ahmed M. Al-Yasir, Yasir I.A. Ojaroudi Parchin, Naser Brunning, J. McEwan, N. Rayit, A. Noras, James M. AbdulJabbar, N.
Abdulkhaleq, Ahmed M.
Al-Yasir, Yasir I.A.
Ojaroudi Parchin, Naser
Brunning, J.
McEwan, N.
Rayit, A.
Noras, James M.
AbdulJabbar, N.
Publication Date
2018
End of Embargo
Supervisor
Rights
© 2018 BROADNETS/EAI (European Alliance for Innovation) and the Authors. Reproduced with permission in accordance with the publisher's self-archiving policy.
Peer-Reviewed
Yes
Open Access status
openAccess
Accepted for publication
2018-08-22
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Department
Awarded
Embargo end date
Additional title
Abstract
Much attention has been paid to making 5G developments more en-ergy efficient, especially in view of the need for using high data rates with more complex modulation schemes within a limited bandwidth. The concept of the Doherty power amplifier for improving amplifier efficiency is explained in addi-tion to a case study of a 70W asymmetrical Doherty power Amplifier using two GaN HEMTs transistors with peak power ratings of 45W and 25W. The rationale for this choice of power ratio is discussed. The designed circuit works in the 3.4GHz frequency band with 200 MHz bandwidth. Rogers RO4350B substrate with dielectric constant εr=4.66 and thickness 0.035 mm is used. The perfor-mance analysis of the Doherty power amplifier is simulated using AWR MWO software. The simulated results showed that 54-64% drain efficiency has been achieved at 8 dB back-off within the specified bandwidth with an average gain of 10.7 dB.
Version
Accepted manuscript
Citation
Abdulkhaleq AM, Al-Yasir YIA, Parchin NO et al (2018) A 70-W Asymmetrical Doherty Power Amplifier for 5G Base Stations. 9th International Conference on Broadband Communications, Networks, and Systems (Broadnets 2018) Sept 19-20, Faro, Portugal.
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Type
Conference paper