Ultra-Wideband Cross-Polarization Conversion Metamaterial Unit Cell Stable To Incident Angles At C-Band
Bibliographic record
Abstract
This paper presents left-handed metamaterial (LHM) unit cell deployed for a wideband cross polarization metasurface (CPCM); The proposed unit cell features a double circular split ring resonator (DCSRR) mounted on a substrate composed of FR4 material, with a metallic ground surface. Notably, its response remains stable regardless of the incident wave angle, making it a strong candidate for various practical applications in the C-band frequency range. The structure exhibits efficient cross-polarization conversion (CPC) for both normally and obliquely incident electromagnetic (EM) waves over a broad angular range. The unit cell demonstrates a negative refractive index across the 6 GHz to 8 GHz frequency span. Within a bandwidth of 4.5 GHz (from 6 GHz to 10.5 GHz), the metasurface acts as a cross-polarization conversion (CPC) device, maintaining its bandwidth enhancement capabilities up to 45° incidence angles under both transverse electric (TE) and transverse magnetic (TM) polarizations. Additionally, the structure is exceptionally thin, measuring only λ/5×λ/5×λ/17 (~0.014λ), where λ = 35.7 mm.
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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 | 0.000 | 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 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".