C‐Band Linearly Polarised Textile‐Reflectarray (TRA) Using Conductive Thread
Bibliographic record
Abstract
A linearly polarised C‐band textile‐based reflectarray (TRA) is designed and fabricated using conductive thread. Three fabric samples are selected to be employed in the TRA design. The relative permittivity of the samples under test are extracted using resonance technique. The extracted material parameters are used in designing TRA elements. The reflected wave amplitude and phase curves are obtained by varying the size of the radiating element, resulting in a 340° reflected phase, which is adequate to design the C‐band TRA. A centre‐fed TRA consisting of elements, with antenna size of is intended for the analysis of broadside radiations. A wide band multi‐layer stacked circular patches are used as a feeder. The radiating elements of the TRA are made using the laying technique with conductive thread. The ground (GND) plane is made of shielded fabric. During measurements, it is observed that the shielded fabric is not suitable to be used as a large ground plane. The TRA antenna is measured at 5.8 GHz. The antenna provides a 1‐dB gain bandwidth of 9.3%, the 3‐dB gain bandwidth of more than 22%, SLL of −16 dB, and cross polarisation of −21 dB. A measured total field amplitude and phase distribution verify the planar wavefront conversion from the TRA.
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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 | 0.001 |
| 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".