Some antenna applications of negative-refractive-index transmission-line (NRI-TL) metamaterials
Bibliographic record
Abstract
Metamaterials are artificial structures engineered to exhibit unusual electromagnetic properties. Metamaterials (MTM) that exhibit a simultaneously negative electric permittivity epsi and magnetic permeability mu, and thus a negative refractive index (NRI), have recently attracted considerable attention in the electromagnetic community. This has been motivated by the potential to create new microwave and antenna devices that exhibit superior characteristics compared to their conventional counterparts. A useful method for implementing planar metamaterials is based on reactively loaded transmission lines (TL). Such NRI-TE media consist of a network of printed transmission lines, periodically loaded with lumped-element series capacitors (Co) and shunt inductors (Lo) in a dual-TL (high-pass) configuration. The planar nature of the TL-based metamaterial (MTM) structures renders them well suited for the realization of planar microwave antennas and circuits. This paper discusses some antenna applications of NRI-TL metamaterials
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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 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 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".