Highly Efficient Multiband Harmonic-Tuned GaN RF Synchronous Rectifier
Bibliographic record
Abstract
This article presents a highly efficient GaN-based harmonic-tuned multiband RF rectifier for wireless power transfer (WPT) applications. The rectifier has been implemented by incorporating a microstrip coupler and a transmission line-based phase shifter to convert a power amplifier (PA) into a synchronous rectifier based on the time-reversal duality principle. The proposed rectifier provides a compact solution for wireless power charging systems while supporting dual-bands. The microstrip coupler is used to derive the gate driving signal for the device, which requires a weak coupling from the input RF signal. The coupler has been characterized separately for wideband operation from 1 to 3 GHz with only 0.3-dB insertion loss. Measurement results show that the rectifier has 77% and 75% efficiencies at 1.17 and 2.4 GHz, respectively, when the input RF power is 10 W. The rectifier shows > 50% efficiency for input power levels down to 1.5 W. To the best of the authors’ knowledge, this rectifier presents one of the highest RF-to-dc rectification efficiencies in dual-band operation for a watt-level RF input power.
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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 | 0.001 | 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) | 0.000 | 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".