A Broadband Metasurface Absorber Based on Indium-Tin-Oxide Thin Film
Bibliographic record
Abstract
This paper presents the design and measurement of a polarization-insensitive broadband metasurface absorber utilizing an indium tin oxide (ITO) resistive film. The metasurface, comprising an ITO conductive layer, effectively absorbs electromagnetic waves by generating ohmic losses, resulting in high absorption. The absorber demonstrates an absorption rate exceeding 90% across a frequency range of $18 \mathbf{~ G H z}$ to 22 $\mathbf{G H z}$, achieving a bandwidth of 4 GHz. The unit cell, with a period length of 0.37 wavelengths, consists of four rotated slotted patches and is polarization-insensitive to incident angles. The overall structure is composed of three layers: an ITO film layer, a PET film layer, and a Rogers RO4350B substrate. The reflection coefficient was measured using the rectangular waveguide method, showing good agreement with simulation results.
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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 | 0.000 | 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 | 0.001 |
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 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".