Analysis and experimental study of an L-band new topology Doherty amplifier
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Bibliographic record
Abstract
This paper describes the first design of an L-band unbalanced-topology Doherty amplifier fabricated with FET devices. In the proposed topology and unlike the standard one, the carrier amplifier operates (at low input drive levels) into a load impedance three times larger than its optimum. Thus, theoretically the Doherty amplifier achieves 78.5% of efficiency at 7.24 dB back-off. At 11 dB back-off from the maximum output power of 26.7 dBm, the measured Doherty amplifier power added efficiency achieves 35.2% at 1.9 GHz that is 18.5% higher than that of a class-B amplifier. Optimum values of Doherty amplifier load and quarter-wave transformer characteristic-impedance were determined. The theory and design of this amplifier with its new topology are discussed.
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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 | 0.000 |
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