A High Modulation Bandwidth, 110 GHz Power-DAC Cell for IQ Transmitter Arrays With Direct Amplitude and Phase Modulation
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Bibliographic record
Abstract
This paper studies the maximum Baud rate and the scalability to the W-Band of the mm-wave power-DAC transmitter architecture. Proof-of-concept implementations of a single DAC lane and of a 2×2 IQ transmitter array are reported in 45 nm SOI CMOS. The DAC cell achieved 29 GHz OOK and 29 GHz BPSK modulation bandwidth and 2×44 Gb/s BPSK+OOK data rates for carriers in the 100-110 GHz range. The corresponding energy efficiency is 7.5 pJ/bit at an output power of 12 dBm. For the 2×2 IQ array, an EVM of 9.0% is estimated over a 12 GHz bandwidth, from large signal power and S-parameter phase measurements.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 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