Bianisotropic Huygens’ Metasurface Pairs for Nonlocal Power-Conserving Wave Transformations
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Bibliographic record
Abstract
Bianisotropic Huygens’ metasurfaces are subwavelength thin surfaces that have been used to achieve wide-angle reflectionless refraction of plane waves, among other applications. These metasurfaces can realize any wave transformation, with a lossless and passive structure, provided that local power is conserved over the metasurface at every point. However, there are numerous practical wave transformations that satisfy total power conservation, but break this local power conservation requirement, such as antenna beamforming. In this letter, a method for realizing these wave transformations using a pair of cascaded bianisotropic Huygens’ metasurfaces is proposed. A summation of plane waves is assumed between the two metasurfaces, and their coefficients are obtained based on the stipulated input and output waves. Finally, a case study of converting a cylindrical wave to a truncated plane wave is presented with full-wave simulations.
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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 | 0.001 | 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 | 0.001 | 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 it