Compact substrate integrated waveguide Wilkinson power dividers
Bibliographic record
Abstract
Two half-mode SIW Wilkinson power dividers are investigated in this paper. The presented compact half-mode SIW power dividers benefit from the excellent shielded transmission characteristics of the SIW in the power splitting branch, unlike the previously published HMSIW Wilkinson power divider. Two structures with waveguide and microstrip line feeds were simulated. The simulations of the half-mode power divider with microstrip launchers demonstrate similar results to those achieved with the all- waveguide half-mode SIW structure. A prototype was fabricated to investigate the half- mode power divider with microstrip feed lines. Measurement results demonstrate improved isolation characteristics in comparison with the previously published literature on all SIW "Y" branch power dividers. A passband of 4.2GHz, or 40% bandwidth centered at 10.5GHz, was measured. The measured input return loss was less than lOdB, and the measured isolation was greater than lOdB over the entire operating bandwidth. The maximum isolation was found to be over 40dB at 12.4GHz.
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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 | 0.001 | 0.001 |
| 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".