A Low Power CMOS Transmitter Design for IR-UWB Communication Systems
Bibliographic record
Abstract
A low power CMOS impulse-based transmitter with on-off keying (OOK) modulation scheme, for ultra-wideband (UWB) impulse radio (IR) system has been designed and laid out in a standard TSMC 0.18 mum CMOS technology. A novel design of Gaussian mono-pulse generator employing simple and robust first-derivative capacitive current-voltage characteristic has been presented. On-chip pulse shaping using an LC Band-Pass Filter (BPF) is developed to meet the Federal Communications Commission (FCC) spectrum requirement. The post-layout simulation results of the proposed UWB transmitter are analyzed. A Gaussian mono-pulse of less than 100 ps falling/rising time with a 130 mVppamplitude is obtained, at a clock frequency of 500 MHz. The total power dissipation of the transmitter is 1.2 mW with only 316 muW consumed by impulse generator. The output of the transmitter before antenna is 48 mVppunder a 1.2 V power supply.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| 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 | 0.001 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 0.001 |
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 source (direct Gemma or distilled Codex), 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".