Design of high‐efficiency and broadband‐tuned class AB power amplifier
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Bibliographic record
Abstract
Abstract The design of broadband matching networks (MNs) exploiting filter theory is presented in this article for synthesizing broadband and highly efficient power amplifiers (PAs).Starting from sets of optimum impedances over the design frequency (obtained from load/pull measurement), the MNs are designed using a systematic approach. The impact of the second harmonic termination on the transistor performance is investigated and used to optimize the power efficiency over broad frequency range. Two PAs were designed with the proposed methodology using 25‐W GaN device. The designs targeted the frequency bands of 1.8–2.2 GHz (20% BW) and 1.8–2.7 GHz (40% BW). The former achieved the drain efficiency (DE) of about 70% and output power of 45.5 dBm (±1 dB), whereas the latter delivered a DE of about 60% and output power of 45.5 dBm. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:395–398, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25710
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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 | 0.001 |
| 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 it