A Novel Integrated Doherty Power Amplifier at 28GHz

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  • This thesis proposes a novel implementation of a Doherty power amplifier as a means to improve backed off power added efficiency when compared to a class B PA. The proposed Doherty output combiner boasts a 28.5% fractional bandwidth at a center frequency of 28GHz. The proposed Doherty amplifier was laid out and manufactured in 45nm RF SOI. The simulated version has a saturated output power of 21dBm and a backed off efficiency improvement of 7% compared to that of a comparable class AB amplifier with a peak PAE of 25%. While the final manufactured Doherty amplifier did not line up with simulated expectations the design of a novel Doherty combiner is shown in this thesis.

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  • Copyright © 2021 the author(s). Theses may be used for non-commercial research, educational, or related academic purposes only. Such uses include personal study, research, scholarship, and teaching. Theses may only be shared by linking to Carleton University Institutional Repository and no part may be used without proper attribution to the author. No part may be used for commercial purposes directly or indirectly via a for-profit platform; no adaptation or derivative works are permitted without consent from the copyright owner.
Date Created
  • 2021


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