A 1.1GHz bandwidth, 46%–62% efficiency Continuous Mode Doherty Power Amplifier
Why this work is in the frame
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Bibliographic record
Abstract
In this paper, a novel technique is proposed to improve Doherty Power Amplifiers' (DPAs') bandwidth and efficiency by manipulating harmonic components to reshape current and voltage waveforms over a continuous bandwidth. Such operation creates a series of continuous high efficiency modes at each frequency over the band, which is referred as Continuous Mode Doherty Power Amplifier (C-DPA) in this paper. Based on the proposed technique, a 30-Watts broadband C-DPA is designed over the entire mainstream communication frequency band 1.65-2.75GHz. Using a 20MHz, 7.5dB PAPR LTE signal, the fabricated DPA is measured and linearized. According to the measured results, the designed DPA exhibits 46%-62% modulated efficiency over the designed 1.1GHz frequency range while maintaining Adjacent Channel Power Ratio (ACPR) below -45dBc. To the best of the authors' knowledge, this is the state-of-the-art performance of DPAs.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it