Three-way Doherty power amplifier for efficient amplification of wideband signals with extended PAPR
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Bibliographic record
Abstract
This paper deals with three-way Doherty power amplifiers (3W-DPAs) as a viable solution for wideband high-efficiency amplification of multi-standard signals. A methodology is presented to design a 3W-DPA with maximal bandwidth. This methodology was successfully applied to design a 30-W GaN 3W-DPA with a measured average drain efficiency of 55% at an output back-off of up to 9 dB, over the frequency range of 0.73–0.98 GHz. The 3W-DPA was driven with a four-carrier wideband code division multiple access (WCMDA) signal with 20-MHz bandwidth and 11.7-dB peak-to-average power ratio (PAPR) at 830 MHz. Power added efficiencies of 47% was measured at 32 dBm average output power, with an adjacent channel leakage ratio (ACLR) of −48 dBc after linearization.
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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) | 0.000 | 0.000 |
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