Broadband class-E power amplifier with high cold output impedance suitable for load modulated dual branch amplifiers
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Bibliographic record
Abstract
The paper presents a design of a broadband high-efficiency class-E power amplifier (PA) for the advanced efficiency enhancement architectures applications. The design approach is based on presenting very high output reflection coefficient for a class E amplifier over broadband frequencies. An infinite reflection coefficient at load over the broadband frequency range enhances the application of class-E PAs as peaking amplifier in advanced efficiency enhancement architectures like Doherty, delta sigma etc. The proposed approach is validated using a Cree 6 W GaN prototype for a frequency band between 1.8-2.7 GHz. The prototype outputs more than 38 dBm output power with the drain efficiency higher than 55% over 40% of the fraction bandwidth. The drain voltage sweep of the fabricated PA shows that it can be also be employed in load modulated dual branch amplifiers and envelop tracking transmitter structures.
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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) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| 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