A reflective broadband metasurface-based cross-polarization converter (CPC) for Ku and K bands
Bibliographic record
Abstract
This study presents a broadband cross-polarization conversion metasurface (CPCM) designed for operation in the Ku and K bands. The CPCM unit cell consists of an octagonal ring with two diagonal parasitic arms, which extend within the ring and are thickened with a curvature on the top surface of a substrate, backed by a copper layer. The metasurface efficiently converts a linearly polarized incident electromagnetic (EM) wave into its cross-polarized counterpart over an ultra-wideband frequency range of 13.4–33.6 GHz. The polarization conversion ratio of the proposed structure exceeds 87% at the operating frequencies for normally incident waves and remains above 80% in a Ku band for angles up to 30° for both TE (transverse electric) and TM (transverse magnetic) polarized EM waves. The surface current distribution was thoroughly examined to explain the high-efficiency and ultra-broadband cross-polarization conversion. A good agreement was observed between measured and simulation results, indicating the promising potential of this structure in applications, such as polarization-controlled devices, stealth surfaces, and 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 | 0.001 | 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 | 0.000 | 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".