Design and Comparison of Fully Integrated mm-Wave GaAs Power Amplifiers Using Physics-Based Compact Model
Bibliographic record
Abstract
Millimeter-wave (mm-Wave) power amplifiers (PAs) are designed using a physics-based compact model and fabricated in <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$0.15 \mu \mathrm{m}$</tex> GaAs pHEMT technology. The model is calibrated to match transistor-level I-V, C-V, and S-parameter characteristics and is shown to accurately predict the measured large signal circuit-level performance of the PA without further parameter adjustment. The PA consists of combined class-AB and class-C devices with a single-cascode configuration and is compared to a double-cascode configuration by analyzing nonlinear behavior of input capacitances. It performs 19.6 dBm OP1dB, 29.7 dBm OIP3, and 39.8% PAE at 5V supply. Measured error vector magnitude (EVM) is −30.5 dB at 10.1 dBm with 100 MHz bandwidth 256-QAM OFDM modulated signals at 24 GHz. The die size is only 0.3 mm<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> excluding RF pads area, and the PA shows competitive performance at mm-Wave frequencies.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.002 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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 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".