Fully Embedded Microstrip Filtering Crossover Using 2D MTM-EBGs
Bibliographic record
Abstract
The metamaterial-based electromagnetic bandgap (MTM-EBG) structure is a fully planar, periodically loaded multiconductor transmission line (MTL) structure. The periodic loading allows a forward propagating microstrip-like mode and a backward propagating coplanar waveguide-like mode to couple power contradirectionally. This contradirectional coupling gives rise to the structure's bandgap (S. Barth et al., “A Miniaturized Uniplanar Metamaterial-Based EBG for Parallel-Plate Mode Suppression,” IEEE Transactions on Microwave Theory and Techniques, Vol. 64, No.4, 1176–1185, April 2016). The size and location of the bandgap can be controlled by varying the reactive loading and/ or host-MTL properties of the MTM-EBG unit cells. The MTM-EBG has been extended to two dimensions in order to model the uniplanar compact EBG (UC-EBG) (S. Barth et al., “The MTM-EBG as a Rigorous Multiconductor Model of the UC-EBG and Approaches for Miniaturization,” IEEE Transactions on Antennas and Propagation, Vol. 70, No.4, 2822–2831, April 2022). Similar to the 1D MTM-EBG, the 2D MTM-EBG exhibits a bandgap at certain frequencies but unlike the 1D MTM-EBG, it can possess different bandgaps for different directions of propagation, as determined by the reactive loading and/ or host MTL properties of the unit cells.
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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 | 0.001 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 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".