Polarization Insensitive Low-Profile Conformal Transmitting Surface for X-Band
Bibliographic record
Abstract
A fractal-based transmitting conformal periodic surface is proposed. A wide-band transmitting behavior with a single-layer periodic surface is achieved. The periodic surface is symmetric to ensure polarization-insensitive behavior. A −10 dB passband of 100% in the X-band with a maximum insertion loss of 0.3 dB is achieved for normal incidence. For an incidence angle of 45°, a-10 dB bandwidth of$3 \text{GHz}(75 \%)$is achieved from 8.5 to 11.5 GHz with a maximum insertion loss of 0.9 dB. The designed periodic surface is then conformed to planar, cylindrical, and hemispherical shapes. A planar periodic surface achieves a 100% bandwidth with an insertion loss of$\leq 0.5 \text{dB}$. For the cylindrical surface, 100% bandwidth is achieved with an insertion loss of$\leq 3.5 \text{dB}$. For the hemispherical surface, 100% bandwidth is achieved with an insertion loss of$\leq 2.5 \text{dB}$.
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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) | 0.001 | 0.001 |
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".