Generalized design of continuous‐mode second harmonic tuned amplifiers
Bibliographic record
Abstract
ABSTRACT This article presents generalized design equations for achieving broadband second harmonic tuned power amplifiers (PAs) that are operated in class‐B, class‐AB, or class‐A bias conditions. The investigation is carried out by deriving the general intrinsic drain current and voltage waveforms for conduction angle, α, varying between 180 and 360°. New impedance solutions are then extracted using the generalized current and voltage equations. Shifted fundamental design space and expanded second harmonic impedance area are obtained when α is swept between 180 and 360°. A Gallium Nitride (GaN) fabricated PA is operated in class‐AB and delivers an output power greater than 40 dBm with minimum drain efficiency of 73% in the frequency band ranging from 500 to 950 MHz. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:2787–2789, 2016
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".