High efficiency harmonically-tuned gan power amplifier for 4G applications
Why this work is in the frame
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Bibliographic record
Abstract
This paper presents the design of high efficiency harmonically-tuned gallium nitride (GaN) power amplifier (PA) based on multi-harmonics load-pull measurements. The high efficiency performance is achieved by controlling the second and third harmonic output impedances at fixed fundamental output impedance using an optimized low-loss output matching network. Measurement results demonstrate that the PA prototype achieved a peak power-added efficiency of 71% and a small-signal gain of 18 dB. Using a one-carrier Worldwide Interoperability for Microwave Access (WiMAX) signal with a 7.3 dB peak-to-average power ratio (PAPR), the digitally linearized PA exhibited an average drain efficacy of 28% at an average output power of 32.8 dBm along with -55 dBc adjacent channel power ratio at the 5 MHz offset, successfully meeting the WiMAX linearity requirements.
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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) | 0.001 | 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 it