Zhang, Zhiwei, Cheng, Zhiqun, Liu, Guohua, Ke, Huajie, Sun, Hao, Gao, Steven (2019) Efficiency‐enhanced Doherty power amplifier using Chireix‐like compensation technology. International Journal of RF and Microwave Computer-Aided Engineering, 29 (11). Article Number 21949. ISSN 1096-4290. (doi:10.1002/mmce.21949) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:76519)
| The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication) | |
| Official URL: https://doi.org/10.1002/mmce.21949 |
Abstract
This article presents a novel efficiency‐enhanced Doherty power amplifier (DPA) by using a Chireix‐like compensation technique. This technique introduces a compensation circuit structure at the combiner to offset the phase difference effect of a DPA for enhancing drain efficiency. A DPA based on the proposed structure is fabricated with two 10 W GaN high electron mobility transistor (HEMT) transistors. The fabricated DPA with such proposed compensation structure manifests a measured saturated output power of 43.5 dBm and drain efficiency of 68% to 71% in the frequency range of 3.2 to 3.7 GHz. Forty‐five percent of drain efficiency can be achieved at 6 dB power back‐off. And the adjacent channel leakage ratio (ACLR) is better than −48.6 dBc with digital predistortion.
| Item Type: | Article |
|---|---|
| DOI/Identification number: | 10.1002/mmce.21949 |
| Uncontrolled keywords: | Chireix-like compensation technique, Doherty power amplifier, efficiency-enhanced, phase difference |
| Divisions: | Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Engineering and Digital Arts |
| Depositing User: | Steven Gao |
| Date Deposited: | 16 Sep 2019 13:28 UTC |
| Last Modified: | 04 Mar 2024 16:08 UTC |
| Resource URI: | https://kar.kent.ac.uk/id/eprint/76519 (The current URI for this page, for reference purposes) |
University of Kent Author Information
Gao, Steven.
| Creator's ORCID: |
 https://orcid.org/0000-0002-7402-9223
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