A 20 W GaN HEMT harmonic impedance tuned class‐F power amplifier
Bibliographic record
Abstract
Abstract A design methodology of harmonic output impedance optimization is proposed to achieve high efficient power amplifier. First of all, the effects of harmonic impedances of high frequency and high power device on drain voltage and current are analyzed. The optimum harmonic impedance region for high efficiency improvement are suggested through the analysis of efficiency variations due to the internal impedance and output matching circuit of high frequency and high power device. From the measured results, a GaN harmonic tuned class‐F amplifier has achieved 77% drain efficiency at the output power of 20 W. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 779–782, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24164
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How this classification was reachedexpand
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 | 0.001 |
| 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".