A tunable ferroelectric unit cell for wideband beam-steering reflectarray antennas
Bibliographic record
Abstract
In this paper, a tunable ferroelectric unit cell for wideband beam-steering reflectarray antennas is proposed. The proposed element is composed of three parts, i.e., a shorted parallel plate waveguide, a bifurcated ferroelectric phase shifter and two symmetric four-section stepped impedance transformers. Employing the DC bias voltage to vary the permittivity of ferroelectric material, the reflection phase of proposed unit cell can be continuously tuned. Full-wave simulated results show that the reflectarray element can achieve more than 360° linear phase tunability from 5.0 GHz to 6.5 GHz. The impact of ferroelectric loss on the performance of unit cell is also investigated. The proposed ferroelectric unit cell can be used to implement wideband beam-steering reflectarray antennas, providing an alternative of complicated phased array antennas.
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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".