Reconfigurable broadband mixer with variable conversion gain
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Bibliographic record
Abstract
A 2-10 GHz Gilbert-type mixer is reported in which the gate widths of the transistors in the RF stage are reconfigurable. The change in the total gate-width of the RF devices ultimately results in a variable conversion gain for the mixer. Measurements show that the conversion gain can vary from a maximum of 24 dB to a minimum of 9 dB. The IP <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1dB</sub> is -19 dBm at the highest conversion gain setting and -4 dBm at the lowest setting, while the OP <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1dB</sub> remained fairly constant at +3 dBm for all conversion gain levels, as expected. The IIP3 was -12 dBm and +3.5 dBm at the high and low conversion gain settings, respectively. The OPI3 of the mixer remained constant at around +11 dBm. The mixer's dc power consumption was dependent on the conversion gain and it ranged from 2.4 mW up to 18 mW drawn from a single 1.2 V supply. The chip core measures 0.19 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> .
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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 | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.004 | 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 it