Concurrent dual-band envelope tracking power amplifier for carrier aggregated systems
Why this work is in the frame
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Bibliographic record
Abstract
This paper presents a dual-band envelope tracking power amplifier (ET PA) capable of amplifying concurrent dual-band modulated signals using a typical single-band envelope amplifier. The dual-band ET PA succeeded to concurrently amplify widely spaced dual-band modulated signals with balanced and imbalanced output powers in each band. The dual-band ET PA was linearized using dual-band Volterra based digital pre-distortion that accounted for the drain supply modulation. When driven with a dual-band signal formed of WCDMA and 5MHz LTE signals at 780MHz and 880MHz respectively, the ET PA achieved an average output power and drain efficiency of better than 39 dBm and 45% with an adjacent channel power ratio of better than −47 dBc for both bands.
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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