Novel dual-band matching network topology and its application for the design of dual-band Class J power amplifiers
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Bibliographic record
Abstract
In this paper, a systematic design of a dual-band power amplifier (PA) is presented. Using the inherent impedance matching flexibility of a Class J operating mode, we can start by relaxing the performance sensitivity and design requirements of the matching networks. Then, a novel dual-band matching network topology is devised to simultaneously present adequate source and load impedances at the fundamental and harmonic components of both targeted operating frequencies. The dual-band matching network is designed in two stages. First, a complex-to-real impedance transformation network, with harmonic control capability, is used to transform the complex impedance for class J operation to real impedance that is common to both operation frequencies. Then, a real-to-real trans-impedance transformer is synthesized using dual-band filter theory. This technique was successfully applied to design a dual-band 45W GaN Class J PA operating at 0.8GHz and 1.9GHz. The measurement results of the fabricated PA shows peak efficiencies of 74.4% at the lower band and 57.6% at the upper band.
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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) | 0.000 | 0.000 |
Machine scores (provisional)
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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