Digital Doherty amplifier with complex gain compensation apparatus
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Bibliographic record
Abstract
This paper proposes a digital Doherty power amplifier (PA) that employs a complex gain compensation mechanism that can be implemented to improve the performance of gallium-nitride (GaN) Doherty PAs. By fully addressing the problems of amplitude misalignment and phase imbalance, which are typically observed at the common junction of the carrier and peaking amplifiers, the proposed complex gain compensation mechanism allows for the recovery of the quasi-ideal load-modulation behavior as well as improvements in the efficiency and output power of the PA. As a result, an average drain efficiency of 50% has been achieved using a one-carrier Worldwide Interoperability for Microwave Access (WiMAX) signal with a peak-to-average power ratio of 7 dB. The complex gain compensation mechanism provided a 5% improvement in the drain efficiency compared to the uneven Doherty PA where only amplitude compensation is employed.
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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) | 0.001 | 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