Design and fabrication of inkjet printed ultrathin FSS based microwave absorbers
Bibliographic record
Abstract
This work reports the design and fabrication process used to create a new class of ultrathin inkjet printed microwave absorbers. The arrangement is composed of a lossy Frequency Selective Surface (FSS) placed above a ground plane to form a resistive High Impedance Surface (HIS). The thickness of the three absorbers investigated range from λ/58 to λ/223. These extremely thin structures present design and manufacturing challenges to achieve the desired energy absorption (> 90%) over a useable (−10 dB) bandwidth. Numerical optimisation of the surface resistance and topology of the FSS pattern gives values of 7% (λ/58) and 1.5% (λ/223) for absorbers working at normal incidence. The digital settings used in a desktop inkjet printer to obtain the required surface resistance value of the metallised FSS patterns are obtained by curve fitting numerical simulations to experimentally obtained transmission coefficients.
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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 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| 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 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".