2 GHz Automatically Tuned Q-Enhanced CMOS Bandpass Filter
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
An automatically tuned 2 GHz 0.18 mum CMOS 3-stage RF filter is presented. The bandpass filter achieves center frequency tuning while maintaining a relatively flat passband. Q-enhanced resonators allow for more than 28 dB of insertion loss compensation in the Alter response. Measured results show that the filter is tunable in frequency by 32.5%, has a 14.7 dB noise figure, a -3.9 dBm 1dB input compression point, a +5.1 dBm IIP3 intercept, and consumes 21 mA from a 1.8 V supply. Automatic tuning of the multistage filter is performed by over-enhancing each stage of the filter until oscillation occurs to set resonant frequency and then backing off the enhancement using a passive Q tuning method, which does not effect the resonant frequency. Automatic frequency and quality factor tuning control were performed using digital logic synthesized in an FPGA. The hardware in-situ automatic tuning of the multi-pole integrated filter eliminates the need for a replica filter.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.001 |
| 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 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 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