Noise figure optimization of wide-band inductively-degenerated CMOS LNAs
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Bibliographic record
Abstract
This paper presents the design and measurement results of a wide-band inductively-degenerated 0.18-mum CMOS LNA targeted for the square kilometer array (SKA) radio telescope. A noise figure optimization procedure is discussed that allows selection of an optimum power consumption resulting in the lowest noise figure given the required bandwidth. The noise optimization procedure accounts for the parasitic resistances of both the transistor's gate fingers and the gate inductor. Measured results of a single-stage 700 MHz-1400 MHz LNA are discussed. The LNA, designed in 0.18-mum CMOS, achieves noise figures better than 0.57 dB, gain (S <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">21</sub> ) of at least 15 dB, input return loss of greater than 16 dB, output P1dB of 6 dBm, and output IP3 of 14.5 dBm while consuming 50 mW of power from a 1.5-V supply.
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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 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| 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.
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