Miniaturised circularly‐polarised antenna with high‐constitutive parameter substrate
Bibliographic record
Abstract
A two‐dimensional (2D) high‐constitutive parameter (TDHCP) substrate is designed using an artificial metamaterial with high‐constitutive parameters. The planar TDHCP substrate is used for miniaturising of a circularly‐polarised microstrip patch antenna. A 2D metamaterial unit cell is needed due to the fact that the electric and magnetic vectors are rotating in a circularly‐polarised antenna. The proposed TDHCP substrate increases the constitutive parameters of the host substrate. It is composed of periodic split‐ring resonators loop circuits embedded in a low dielectric host medium. The TDHCP substrate provides equal permittivity and permeability ( ) at any frequency of interest, which compensates for the bandwidth reduction due to the increased permittivity. The size of the proposed TDHCP substrate antenna at 850 MHz is reduced up to about 72% compared to the conventional microstrip patch antenna. The bandwidth of the antenna is increased compared to high‐electric permittivity substrates because of the increased the magnetic permeability. The proposed antenna is fabricated and measured. The simulated and measured results show a good agreement.
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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 | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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 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".