A 3.6 GHz tunable CMOS bandpass filter using Q-enhanced circuit
Bibliographic record
Abstract
A front-end CMOS bandpass filter is proposed for applications of 3.6 GHz RF wireless receivers. In the proposed filter, the Q-enhancement technique is used to overcome low-Q characteristics of CMOS on-chip inductors. A 6th order bandpass filter with a wide pass band and a high image rejection was built by cascading three stages of 2nd order Q-enhanced filters. An experimental chip designed by standard 0.18 /spl mu/m CMOS technology occupies an area of 900/spl times/900 /spl mu/m/sup 2/. Post-layout simulation results show a high performance filter: a tunable Q from 25 to 50, a tunable center frequency from 3.53 GHz to 3.67 GHz, an image-rejection of 60 dB, a 30 dB voltage gain, a 10 dB noise figure, an output 1 dB compression point of -32 dBm with a -15 dBm third-order input intercept point while consuming a 120 mW of power.
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How this classification was reachedexpand
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 | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".