Design of a high-Q CMOS-compatible MEMS tunable capacitor for RF applications
Bibliographic record
Abstract
A high-Q micromachined electro-mechanically tunable capacitor for RF application is presented. The proposed design is CMOS-compatible that can be integrated monolithically with CMOS circuit in a single die. In this structure there is no need for cantilever beams which introduce considerable series resistance to the capacitor and decrease the quality factor. So our varactor achieve better Q in a smaller area. The simulated 1 pF capacitor shows a Q of 40 at 1 GHz and a tuning range of 42%. Pull-in voltage is 3.6 V which is a reasonable value for submicron CMOS technologies. To improve the Q, the top plate is modified to a double layer structure. In this case the top plate consists of 1 /spl mu/m thickness polysilicon and 0.5 /spl mu/m aluminum deposited on top of it. This design shows a Q of 47 at 1 GHz.
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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) | 0.000 | 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".