PCM-Based Bandwidth-Reconfigurable Acoustic-Wave Filter
Bibliographic record
Abstract
We present the design, fabrication, and experimental testing of bandwidth-reconfigurable surface acoustic-wave (SAW) filters with integrated vanadium dioxide (VO2)-based radio frequency (RF) switches. We propose a design that utilizes the phase-change properties of VO2, which transitions between insulating and conductive states to enable dynamic reconfiguration of the SAW filter bandwidth. By modifying the interdigital transducer (IDT) configurations, the electromechanical coupling coefficient (k2) of the resonators can be varied, thus enabling the reconfiguration across different bandwidths. Experimental results demonstrated the bandwidth adjustability offered by the proposed design, and the fabricated prototype filters suggested that monolithically integrated VO2-based RF switches can provide a flexible solution for reconfigurable acoustic filters. To the best of our knowledge, this work represents the first demonstration of bandwidth-reconfigurable acoustic filters with monolithically integrated RF switches with acoustic resonators.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| 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) | 0.001 | 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 source (direct Gemma or distilled Codex), 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".