Slot Antenna Array with Compact Feed based on a Substrate Integrated Fabry-Perot Cavity
Bibliographic record
Abstract
This work presents a new technique for designing the feeding circuit of a slot antenna array. The radiating slots are arrayed on one side of a single layer printed circuit board. The array is excited via a compact substrate integrated Fabry-Perot cavity (FPC). At the resonance of the cavity, the outgoing field is quasi-uniform and permits a transverse electromagnetic traveling-wave mode through the array at 8 GHz frequency. The FPC is fed by a microstrip line using a transition made of a metallic via and a coplanar-waveguide (CPW) line. Based on this design principle, the array is optimized. This design offers a simplified and smaller feeding circuit than conventional antennas that use multiple dividers or combiners. Simulated results validate the proposed approach. These results illustrate acceptable impedance matching, and an 18 dB gain. This technique demonstrates a feasibility step in antenna engineering.
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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 | 0.001 | 0.000 |
| Research integrity | 0.000 | 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".